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You've got it wrong. It doesn't have to be HTTP[S] traffic.

Reverse proxies can disambiguate based on the SNI. I could run telnetd on port 23, but have port 23 firewalled off, and have my reverse proxy listening on port 443 with TLS forward anything going to telnet.mydomain.com to telnetd. Obviously, my client would need to support that, but a client-side proxy could easily handle that just as well.


> There was a time when if you'd put a fresh XP install on the Internet you'd get 5-10 minutes until it would get restarted.

This is still true, though 5-10 minutes is slightly pessimistic. Source: https://youtu.be/6uSVVCmOH5w

TL;DW - Guy installs XP and makes it internet accessible, only takes 15 minutes before the first malware appears on it.


I'm assuming you're referring to blood loss from menstruation? That's typically only 30-40 mL (1-1.5 fluid ounces, about a shot glass).

Nowhere close to the amount given during a donation.


Heavy bleeders would be in the 100-200ml range. This group should correlate with longevity.

You're allowed to say "fucking sucks" on Hacker News. It's not against the rules, and there's no "algorithm" that will penalize you.

glad to know, i am rather new here and somewhat used to the "don't do the usual forbidden stuff".

Well yeah, but nobody sane still uses telnetd.

I ran it on a Raspberry Pi (I think first or second gen) for a few years.

It requires next to no CPU time, since the server is effectively just a packet relay.


To a modern audience, it's definitely not.

> One thing HPDE taught me is that most people under brake in dangerous situations because they simply don't know the limit of their vehicle nor the sensitivity range of the brake pedal.

On any modern car, just push it all the way and let ABS and stability control figure it out, and don't let the vibrating brake pedal spook you into releasing it. That's just ABS doing its thing.

Really though, getting a license is too easy in the USA. We really need to require some sort of car control course, including obstacle avoidance in the rain. Would be really nice too if it included an obstacle avoidance course in two cars: A huge SUV or pick-up truck and a more reasonably sized sedan. So many drivers think they need a huge vehicle to be safe while being completely unaware of how well smaller cars can likely avoid the crashes to begin with. Would probably get really expensive really quickly, though.


> vehicle changes lanes in front of you;

I will never understand why this is so rage-inducing for people.

Changing lanes is a necessary part of navigating, even during busy traffic. People on an on-ramp will need to get in front of somebody. People needing to move back to the right because their exist is coming up will need to get in front of somebody.

Your lane is not a birth right. Let people merge.

> you slow down to maintain a safe following distance, another car sees a gap and changes lanes in front of you. Repeat for your entire commute.

This happens because literally everyone is tailgating each other so hard that the gap in front of you is the only gap that exists for people to change lanes to either get on or off the highway.


It's frustrating because someone is taking your safety buffer as their opportunity to travel faster. And it results in you having to travel slower and slower to maintain the gap that is constantly consumed, tragedy of the commons style, by opportunists.

Slow down a bit to create another buffer. You can even do this before they have merged, as part of the bit where you allow them to safely merge.

I think if you reflect a bit you'll find you are being the same kind of person as them, if you are getting angry that you have to slow down and give up space for someone else. I understand some people can be aggressive though, that can be frustrating regardless of the outcome.


I don't think you're understanding. The point is that 20 people in a row will take advantage of your buffer to slow you down again and again and again, which makes you get to your destination later... because they're being selfish to get somewhere faster, and you're not so you get to where you're going slower.

We're not talking about where they're changing lanes to take the next exit. We're talking about where your lane happens to be moving faster, so they merge in front of you in an unsafe way to take advantage of that and just stay there. Why should you be expected to give them space, as you suggest? How is that fair, that they should get to their destination faster instead of you? Do you not see how that's going to rightfully make someone angry? When they should be waiting for a safe space to open up, rather than forcing you to slow down to create one?


I understand perfectly, 20 years driving, I think people just don't like that the safe answer is to be slow. You will not fix others behaviour, so your options are be slow and generous, get out of the chaotic lanes (unless that's all of them), or join them and be aggressive, claim space, be stressed and annoyed your whole trip.

There is no solution to traffic here sorry, this is more about managing your own frustration and expectations when faced with people at their worst, in the worst form of transport.

The total, confirmed, 100% effective solution is to never commute by highway during peak hours, but few get that option.


I object to the "late" argument made by etho's parent. The difference in time to destination will inevitably be dominated by lights, in city travel, not by modest speed differences (say 45 vs 55) on a highway. Being safe & out of the way is the trick! It would be nice if we got rid of left & u turns and build our roads for that!

45 vs. 55 is not modest; that's 5 minutes over only 20 miles. Up around 60 vs. 70 is where it becomes "modest" IMO.

So, 3 stoplights worth of time?

Or 0.1 of billable hours, which for many people here is at least enough to pay for lunch.

There is no solution to traffic here

There is, people just don’t want to hear it, and it isn’t a quick fix…

Build more of our towns and cities such that driving everywhere isn’t necessary.


The subsidies for cars is crazy when you look at it from that perspective. What you need to do is invest a lot of money in areas and systems that can make it better over time. In the end you are going to spend less.

Thanks for writing this, it reminded of how unfun driving really is. I realised how blessed I am now with not having to drive anywhere anymore.

I am going to validate what you say here.

Ehto is correct and this is the way. I'll go further and say that if someone is tailgating you and it's pissing you off, generously let them pass. Literally pull to the side of the road if you must.


The issue is that when you slow down, you’re (a) creating ‘turbulence’ in the traffic flow with increased speed differential between cars and increased lane changes, which increases accident risk for everybody, and (b) it’s not even solving the problem because you still perpetually have some impatient driver wedging themself in directly in front of you, deleting your buffer zone.

It’s safer to drive a little closer, keep up with other traffic and defend what gap you can in front of you.

Agree with your conclusion here, though. The best response is to simply not drive in this kind of traffic.


Hard disagree. It is not safer to ignore your safety buffer. It is certainly not safer to defend your buffer.

If traffic is very busy, the trick is to just accept people will wedge in front of you and keep going slightly smaller each time to increase the buffer again. You might create 'turbulence', which might possibly decrease the safety a bit for all the impatient drivers doing the wedging. But it increases your own safety. And therefore also that of the people following you and your passengers.

I'm also not convinced on the 'turbulence' part. Keeping a buffer smoothes out any sudden speed variations of the people in front of you, which makes the traffic behind you flow better.

And it might maybe feel a lot slower to let a 100 cars go in front of you on your commute, but just driving 99km/h when the person in front of you does 100 is enough to increase your gap and it makes a whopping 1% of difference.

The only thing is: sometimes a road is just too busy and the space for a buffer just isn't there to begin with. At that point the speeds should go down to accommodate the smaller buffers, which is actually what happens here in the netherlands as long as there aren't too many people ignoring the speeds advisory boards above the highway.


> The issue is that when you slow down, you’re (a) creating ‘turbulence’ in the traffic flow with increased speed differential between cars and increased lane changes, which increases accident risk for everybody, and (b) it’s not even solving the problem because you still perpetually have some impatient driver wedging themself in directly in front of you, deleting your buffer zone.

That's very obviously not true. Slowing down always reduces energy in the system and always reduces global turbulence. It's one of the reasons that countries that lower speed limits see journey times reduce.


Is there a statistics name for the last part? I'd like to compare different countries. It's definitely NOT true in Colombia at least, which makes me believe OP more.

We in Colombia had a public service announcement where it showed someone driving really fast (while still respecting semaphores), and another one going with just enough speed. In the end, they both reach the last semaphore almost at the same time and then they part ways. Essentially it shows that driving crazy fast in the city doesn't necessarily gets you faster to your destination.

Now that I'm an adult, I tested it several times, and it matches 90% of my attempts, but that's in the city, with semaphores. No way I'd think letting everybody steal everybody else's buffer would provide for a reduction in journey time, even in highways. You're adding items to a queue, it'll take longer.

Now, it is probably safer, but we can only take so much even if we are not in a rush.


Slowing down on a busy highway does not reduce turbulence at all, it add chaos and unpredictability to the system. Once car suddenly slowing down to create a buffer zone causes the car behind to slow more and more and can often lead to a stop further back. This has been proven time and again on closed loop systems studying highway traffic flow. They are known as "phantom" traffic jams or shockwave traffic jams. Example, https://www.newscientist.com/article/dn13402-shockwave-traff...

> Slowing down on a busy highway does not reduce turbulence at all, it add chaos and unpredictability to the system. Once car suddenly slowing down...

I agree that slowing down "suddenly" causes turbulence. However, slowing down *gradually* allows you to build up a safety buffer which in turn allows you to avoid slowing down suddenly.


Yes, and they are caused by sudden decelerations which are the result of many factors, including driving too fast for the conditions, roadway, and traffic, and tailgating.

> Slowing down on a busy highway does not reduce turbulence at all,

The only thing that reduces global turbulence reliably on any roadway is reducing speed. All the simulations and real-world implementations show this. It's unambiguous and uncontroversial, except that it requires drivers to slow down, which is politically untenable in many jurisdictions.


It is more dangerous to be slow and have people constantly merging in front of you, rather than be slightly faster and not have all the merging. Accidents happen when vehicles are going different speeds, all things equal.

That seems like a surprising enough statement to be backed up by data. What is your source?

Everything I've read points toward larger margins of safety (longer distances, slower speeds) being safer.

See e.g. https://publications.lib.chalmers.se/records/fulltext/252480...


Obviously it is safer to have longer follow distances, all things equal. But you don't accomplish that if you leave a long follow distance that is cut off a few seconds later by another car trying to get ahead. You end up with a constant stream of cars cutting your follow distance to less than what it would have been if you had just stayed slightly closer to the car in front of you.

We don't live in an ideal world, and having a bunch of cars merging in front of you definitely makes you less safe than having a static situation. I try to make sure I can see through/around the car in front of me, so that I have advance notice of what's happening down the road.


American road laws are insane here. The law should be simple; you must be in the outside lane at all times unless you are overtaking, and once you're done overtaking, you should merge back into the outside lane.

https://www.highwaycodeuk.co.uk/overtaking.html


As far as I know that’s the law in every state I’ve driven in, but enforcement is pretty much nonexistent. Some states like Texas or Louisiana might have signs reminding people to stay out of the inner lanes except for passing but I’ve never heard of anyone getting a ticket over it. What’s enforcement like in the UK?

For example, the specific law in California: https://leginfo.legislature.ca.gov/faces/codes_displaySectio...


Vigorous.

Confusingly, the slow lane is called the "inside lane" in the UK, even though it's on the edge of the road and the fast lanes are in the middle.

That used to be the case in Ireland too, but confusion due to cultural contamination means pretty much everyone moved to numbering lanes (from the "outside"/"slow"/leftmost lane).

I've been driving in Ireland for 30 years and I've never heard anyone number lanes. For me it's left/slow; middle; or right/fast lane.

When I did my B license test probably about 30 years ago, the Rules of the Road all referenced inside/outside lanes. When I did my CE license last year, it had been updated to only use lanes 1, 2, 3 etc.

Obviously fast and slow are just colloquial terms.


I wish.

Seems like this is the only place where the verge is in the inside.


That's fine when traffic is light. At rush hour, all lanes are full and nobody is overtaking.

That seems rather inefficient on an 8– or 16–lane road.

Why? If everyone followed the rules the lanes would segment into slowest on the right, with gradually increasing speed to the left and people moving between the lanes as needed to overtake. It would be far far far better than the chaos of having to move across all the lanes of traffic all the time because there are random campers driving below the speed limit in every single lane.

First, everyone switches right as soon as there's a gap in a righter lane, so lots of unnecessary switching. Second, the right lane is always full making it hard to merge on or off the highway. Third, the leftmost lanes are underutilized when they could be filled with people who have a long way to go until their offramp.

You might be a bad driver and not even know it.

My decades-long impeccable driving record tends to indicate otherwise. I just don't drive as if I lived in the fantasy land where leaving a long follow distance means I have a lot of room in front of me. It doesn't. It means I get cut off, and the follow distance ends up being shorter than it would have been had I just been following at the same distance as all the other cars on the road.

It is possible of course that the highways you drive are just too busy and the max speed is actually set too high for how busy the road is. That happens more than you'd want because lowering the max of a highway is always an unpopular thing to, even if it's needed.

Still, I tend to find that people underestimate the danger of short distances. Often it's just better to accept a 100 cars going in front of you than to shrug off following someone at 1.5 seconds. It can go well for years because crashes are rare, but when you are in a crash you will be royally screwed when you don't have the reaction distance needed.


This assumes that you can actually maintain a 3 second follow distance. On some roads, you simply cannot, and an attempt to maintain such a distance leads to increased danger from all the cars that cut in.

Simply put: follow distance is not a unilateral decision.


This is dangerous nonsense. It's basically just a justification people find in order to feel good about their unsafe driving.

If you actually want the safest option then you should merge all the way right and keep slowing down. Noone is going to merge right if they are trying to go faster, they will only do it to get off the offramp. Meaning the gap will reopen as people exit through the offramp or merge left into faster lanes.

If you choose to go in the fastlane in traffic you should understand that it will have people who do not care about the following distance as much and are just trying to go as fast as possible.

I have found that often times in heavy traffic the rightmost lane can be just as fast or actually faster than a middle or left lane.


> Noone is going to merge right if they are trying to go faster

In my experience even cars that are not trying to go faster will happily merge in front of you unsafely all the time, just because they don't understand the concept of a safe distance.


> If you choose to go in the fastlane in traffic you should understand that it will have people who do not care about the following distance as much and are just trying to go as fast as possible.

It's not about choosing to go in the fast lane. It's about the fact that in heavy traffic, you have no idea which lane will be fastest, because they're all heavy and which one is fastest keeps switching.

> I have found that often times in heavy traffic the rightmost lane can be just as fast or actually faster than a middle or left lane.

That's exactly my point. Which is why you can be in the right lane, and tons of people from the slower lane will try to merge in front of you if you're keeping a safe distance from the car in front.

Your advice is staying in the right lane doesn't apply in these situations.


This is a long thread of people talking past each other. The bottom line is simply this: if you want to drive with a larger-than-average following distance (call it whatever you want, a safety buffer, a "proper" following distance, the point is it is a distance less than the average following distance of the other drivers on the road) then you have to accept that you will not be able to drive at the same speed as the other traffic on the road. It's physically impossible. It can be psychologically frustrating because you see all the cars around you moving at X mph but your self-imposed constraints mean you can only make way at (X minus Y) mph. But them's the breaks, no pun intended

> It can be psychologically frustrating because you see all the cars around you moving at X mph but your self-imposed constraints mean you can only make way at (X minus Y) mph.

This is correct, but I get the sense that people overestimate Y.

Let's say you're driving 60 mph and following the "three second rule" which gives you a ~264 foot safety buffer. A driver then cuts into this safety buffer. Let's assume they like to go fast and enter closer to the front of the buffer so they reduce your safety buffer down to two seconds. In response, you gradually rebuild the safety buffer back to three seconds, costing you an extra second. Soon after you rebuild the safety buffer another car cuts in front of you. Let's say this process repeats every mile of your journey, costing you an extra second every time. This results in you traveling slightly over ~59 mph, making Y = ~1 mph.

Compare that to the lifetime odds of dying in a car crash in the U.S. which is roughly 1 in 100. It's hard to eliminate that entirely, but I'm willing to spend an extra ~1s per car that cuts in front of me to reduce it for myself and my passengers.


>It can be psychologically frustrating

True, though-

I like being a traffic hacker--come on in, plenty of room!


Weaving into the little spaces is my version of traffic hacking. I estimate every time I can do that, I shave 1-2 seconds off of my commute.

i'm upvoting you assuming you were being sarcastic. if not, i hope you die in a fire of your own making. (also sarcastic)

Thanks. (sarcastic)

Not so. Keeping a constant distance from the car ahead means both cars are moving at the same speed. When a jerk cuts in, after a moment all 3 cars will be moving at the same speed.

We are saying the same thing. When a jerk cuts in, drivers readjust their speed to maintain desired following distance. Net effect, slower speed for all but the lead car

If you personally start with that slower speed to begin with (AKA much longer following distance), you don't have to worry about adjusting down


Everyone merges into your lane

Their old lane speeds up because many cars departed it

Everyone merges back to their old lane

You're back where you started.


The fastlane is just another name for the leftmost lane, I am not talking about the one moving fastest.

Again we are not talking about the fastest lane here we are talking about the safest as the OP was concerned about following distance.

> That's exactly my point. Which is why you can be in the right lane, and tons of people from the slower lane will try to merge in front of you

If everyone merged right it would not longer be faster but people do not do this. In the right lane you can slow down as much as you want and never cause an issue so you can always make a gap. In any other lane if you slow down more than traffic you cause issues because people will then try and pass you from the right which is dangerous.

You are placing the burden of your forward following gap on the cars around you but that is a terrible way to drive. You need to be in control of yourself when driving, do not trust that someone is going to follow traffic laws, do not trust that they will go whatever way there turn signal says, do not trust that they will look over there shoulder before merging.

If YOU want a following gap then the only possible safe way to do this is to merge all the way right and slow down whenever someone merges in front of you. There is no other way to do it in heavy traffic. And YES you will have to live with the fact that you will be driving slower than the traffic around you. That's the trade you make if you choose to have a large following gap.


You’re the problem because of the way you are thinking. You don’t own the asphalt in front of you. You’re angry because in your mind you do, and you feel righteous about it. That’s why you are casting a moral judgement about them.

The most efficient throughput of the road system is not for people to “politely” queue up for 5 miles. People should be utilizing the rod and merging in an orderly manner. By adopting some arbitrary self imposed practice that is leading to 20 drivers cutting in front of you, are the one creating an unsafe situation.


> You don’t own the asphalt in front of you.

Correct, but you _need_ the asphalt in front of you for both safe driving and also to avoid cascading hard braking events. I also don't own the asphalt under me or behind me too, so it's kinda a silly statement tbh.

This youtube talks about it: https://www.youtube.com/watch?v=iHzzSao6ypE


You do, but if you leave so much that 20 cars are pulling in front of you, you’ve either driving too slow or misjudged and left unnecessary space. At 15-20 mph traffic speeds, you need 8-20 feet. Ideally, cars in a multiple lane to one lane exit scenario should be zipper merging when congestion reduces speeds. Engineers model this behavior and try to design roads to encourage it.

If you do that and get angry when people change lanes in front of you, you have consciously or subconsciously decided you own that 20 foot gap. That reaction impairs judgement and causes accidents.


If 20 people take advantage of your buffer, then you are delayed by a distance of 20 vehicle-lengths + 20 follow-distances. This is about 1000 meters, a distance which you can travel in about 45 seconds. So the net effect of all 20 people merging in front of you is less than a minute delay on your trip. Unless there is an almost constant stream of people merging in front of you, this isn't adding up to more than a percentage point of two of your whole trip.

You mean 20 people who were trying to merge finally get to merge because someone came past who wasn't a massive asshole?

To be completely clear the conversation is entirely not about zipper merging, but about people who are using safety gaps as opportunities for them to traffic weave attaining a faster than average travel speed at the cost of every one else's average travel speed and safety

That sounds like a recipe to crash into someone. Let natural selection work.

That person then gets screwed.

Screwed person: WTF?

People doing the screwing: ‘oh thank god’

The really irritating part - society saying ‘oh, that’s not happening you should continue to be screwed’


Nobody is getting screwed. I've been the person making the gap many many times. You just ignore them, it isn't hard - they are way up there and I'm way back here, plenty of space. I just keep on with my business of safely driving. Sure I often wish I could go the speed limit - but in reality I'm going almost as fast as they are so it isn't like a few feet lost costs me anything. Odds are I'll be stopped at a red light and lose a lot more time once I get off the highway.

Besides, there are only a few people who ever merge in front of me (and then those who don't merge block their lane so nobody else can get in).


In high traffic you’re definitely being screwed - both by the continuing lack of a proper safety gap, and by not being able to go a normal speed. Which does add up in many of these situations.

But I guess we should just all self gaslight to feel better about it?


In heavy traffic nobody is going "normal speed". I'm not going significantly slower than anyone else.

In Bay Area traffic I’d literally be not moving at all for most of the time if I followed you advice, in heavy traffic. That’s the exact situation I’m talking about.

60 (20*3) car lengths at 20 mph is 30 seconds

20 people in a row is like 200 meters. Absolutely negligible to your travel time.

> 20 people in a row will take advantage of your buffer to slow you down again and again and again, which makes you get to your destination later...

30 seconds later, so what?


you missed the fact that most people either aren't signaling or do it right as they're already cutting in.

that's hardly safe when it's already tight with a safety buffer as it is.

provided they use a signal as required by law and taught in the drivers handbook, they'd likely be let into the new lane without any judgement.


  >> It's frustrating because . . .
  > Slow down a bit to create another buffer
  > I think if you reflect a bit you'll find
The parent post does return to the psycho-emotional layer of the problem but on the whole the exchange brings to mind the "two movies, one screen" model of perennial problems. In many of the comments here some people emphasize the problem in terms of physics and some see the problem in terms of psychology (both have overlap and are valid).

A third perspective may be "game theory." I think the Prisoner's Dilemma [0] could explain some aspects of the physical/mental problem. In the set below, Driver A's strategy isn't dependent on a singular predictable Driver B but all drivers that may perform the role of Driver B during the course of a commute.

  Agent       Cooperate     Defect
  Driver A    leaves space  doesn't
  Driver B^n  merge         stay
Leaving aside all times in which a Driver B must merge, such as lane ending zippers or merging to approach an exit lane, Driver B merges because there is some advantage to being in the lane of Driver A. If Driver A maintains space they will not just lose to one Driver B but to all Driver Bs.

I conjecture that this is a collective action problem and that above a certain traffic saturation point there must be a social taboo against changing lanes.

This is not to claim that individual perspective shifting is not important. I am reminded of Foster Wallace's Kenyon address "This is Water," [1] quoted below. However, the task of changing individual perspectives is vastly higher energy than the creation of a social taboo, which is why purity codes and other social inhibitors are so prevalent.

  If I choose to think this way in a store and on the freeway, fine. Lots of us 
  do. Except thinking this way tends to be so easy and automatic that it 
  doesn’t have to be a choice. It is my natural default setting. [...]
  
  The thing is that, of course, there are totally different ways to think about 
  these kinds of situations. [...] [Maybe] the Hummer that just cut me off is 
  maybe being driven by a father whose little child is hurt or sick in the seat 
  next to him, and he’s trying to get this kid to the hospital, and he’s in a 
  bigger, more legitimate hurry than I am: it is actually I who am in HIS way.
0. https://en.wikipedia.org/wiki/Prisoner's_dilemma

1. https://fs.blog/david-foster-wallace-this-is-water/


-Slow down a bit to create another buffer.

Now you've just created a shockwave traffic jam.


No, the person who wedged themselves into an unsafe/too-short opening created the shockwave traffic jam. But, yeah, that's the end result.

No. That happens when people drive too close to each other and brake. Not when you let off the gas slightly to maintain a gap which prevents this exact thing.

The entire reason this happens is because 98% of people are morons who drive up the next guy's ass. If everyone kept a proper distance it wouldn't happen at all.


That is a paranoid-survival oriented perspective.

> someone is taking your safety buffer as their opportunity to travel faster

Nobody is 'taking' something; we're all just sharing the road, and at little cost. People change lanes for many reasons, and sometimes to pass someone else and travel faster. That's what the left lane (if we're talking about the US) is for.

> results in you having to travel slower and slower to maintain the gap that is constantly consumed,

I understand the theory but that hasn't happened in my experience.

And even if five or ten cars got in front of you, how much distance is that? A random Internet site says the average midsize car is 16 feet; add 220 ft safe driving distance at 75 mph (says another random website), so let's say 240 ft per car x 10 cars is 2400 ft. In that extreme circumstance, it will cost you ~30 seconds.

It's self-fulfilling: If you act aggressively toward other drivers, they will respond in kind. If you treat them respectfully and politely, they act the same way toward you. People behave well and kindly, naturally. We are social creatures.


Not to mention if that if somebody needs to come over, the proper thing to do is signal first. Then I'm happy to politely ease off a bit and open more space for them to come over safely.

It's the people who aggressively slide right over just a few feet in front of me (cutting off nearly all of my safety buffer) without so much as a signal that really drive me nuts.


It's the people who hit the gas when they see your signal, that really irk me. In Austin I stopped signaling because it was a punished behavior.

In Austin too, and probably just caused a driver to think the same thing. They were in the left lane on a frontage road which was suddenly turning left even though there was an entire lane opposite the intersection blocked off by those plastic things that seem popular to randomly place in the road these days. I saw them hesitate and figured they wanted to merge right, so i decelerated a bit to add another car length or or so, at maybe 10-15mph. They had plenty of space, flipped on their blinker, and instead of just merging started slowing down, to which I decided I wasn't going to brake more to allow them to block myself and everyone else from rolling through the intersection. They basically stopped in their lane, and beeped as I rolled by, to which someone behind them beeped at them for blocking the lane.

In Austin if you want to merge, decide if you can, blink and then merge.

Don't expect people to stomp on their brakes and stop to let you in, especially if your already traveling slower than the lane you are trying to get into and decide to further slow yourself.

And if you can't merge, deal with it, exit, or miss your exit and go around. Next time you will be more prepared or you will learn how to properly merge.


My experience driving in MA and NY was similar, but so often it was because a rusted out shitbox was trying to merge in that would slow down traffic significantly, and not only put me at risk of rear ending them, but being rear ended myself.

When flows merge, there's turbulence. There's less turbulence if the flows are more closely matched, including speed.


In the UK we are taught that you should not signal until you are ready to manoeuvre. If you follow the rules exactly this can put you in the unfortunate position of being penned in behind shower traffic.

Unless I'm the last car in a line and there's plenty of open space behind me. Then you should just wait until after I've passed before merging, because otherwise you create a little ripple in the flow. A few ripples and you got a wave, and that's how you get traffic.

So for the love of gods, if you're merging, even if you signal, match speeds for merging. If you're too slow to match speed, then suck it up buttercup, and hang out in the right lane until there's an opening.


It seems like a tragedy, but actually it can be a boon as long as you travel in neither the leftmost nor rightmost lane. The majority of the traffic entering your buffer will be exiting your buffer out the other side as soon as they can, so you can just chug along at a (greatly reduced, but) consistent speed. Meanwhile, the traffic to either side of you is in standstill, paralyzed by your bow wake.

It's wild to me how often the left lane is not the fastest lane.

I've had times where the right lane ends up being the fastest. On I-5 near Woodburn, OR, it's 3 lanes. So many drivers, including truckers, will often stay out of the right lane entirely to avoid being caught up in traffic coming on/off. Meanwhile, the left lane is going 5 mph under the limit because there's a left-lane camper somewhere miles ahead. So I can fly past everybody in the right lane because there's actually barely any traffic coming on/off and everybody is avoiding the right lane for no reason at all.


> On I-5 near Woodburn, OR

The section of I-5 between Portland and Salem is absolutely psychotic, and I have never been able to reason out exactly why. It consistently has a left lane jammed with angry people going at or below the speed limit, a fairly normal center lane filled with cruisers, and a mostly empty right lane with the occasional big rig and regular very-high-speed cars expressing their frustration with the left lane by going 25+ mph over the limit in the right lane.

I know that's what you basically just said. Just venting. The driver behavior in that section of freeway confounds me, and I do not know what the underlying cause is. It is otherwise an unremarkable bit of interstate like any other.


It's wild to me that it's allowed and accepted to overtake on the right on US highways.

The alternative is that you're stuck going 10+ mph under the limit because of a left lane hog.

Banning passing on the right only works if keep-right-except-to-pass laws exist and are thoroughly enforced. Most states in the USA don't have keep-right laws, and those that do, it's never enforced, so many people don't even know it's actually the law.

EDIT: US-26 westbound immediately outside downtown Portland is notorious for left lane campers. The limit is 50 mph, but without fail, there's some moron going 40 mph in the left lane. You wanna go slow? Fine, but do it in the right lane where you belong.


AFAIK all US states have some form of "keep right" or "slow poke" laws in various forms that distill down to keep right, except to pass.

So the laws do exist, they just are never enforced. Even when said left lane campers cruise by state patrol, I never see them stopped. Hell, I rarely see them stop people going 15+ over the limit either so not actually sure what they're doing.


Its not against the law in any US state (a quick search seems to back this up) to pass on the right. With one huge gotcha, it must be "safe" defined in various ways.

OTOH, most states have a stay right except to pass, slower traffic keep right laws.

Which means, that unless the person to your right is weaving through traffic, driving on the shoulder, or a few other bits of unsafe behavior, if someone passes you on the right your likely the one violating the law by not moving right when your not actively overtaking/passing someone.


It's generally not allowed, but that doesn't stop people just like the speed limit doesn't stop them.

> It's generally not allowed

Common misconception, actually.

There is not a single state in the USA where using the right lane to pass slower traffic in the left/center lanes is illegal. It is allowed everywhere.


That's the freedom we're talking about when we say "land of the free".

It's not the fastest often because it's oversubscribed and people do not understand that the car has a 3rd, mostly underuntilized, state of neither pedal depressed (ie "coasting") ... so they create cascading braking pileups ...

To be fair, some (automatic) vehicles have such tall gearing that coasting will not slow you down if on a flat, let alone downhill. I've driven a few, and I can't stand them. You have no choice but to tap brakes.

I much prefer cars with short gearing for better engine braking. I continue to choose to drive a manual party for better engine braking.


If everyone that had it turned adaptive cruise control sigh.

So many people don't even use regular cruise control. They'll have nobody in front of them for miles and their speed yo-yos between 60 and 65 mph. And if you pass them because your cruise is set at 66 mph, they'll speed up to match, but then eventually decide to pass you, get in front, and slow back down to 60. The only way to end the stupid cycle is to go 70-75 mph until there's at least 1/4 mile between the two of you.

and there is a huge overlap between those people, and those who slow down to 60 to save on fuel.

If they'd just drive 70 on cruise control, they'd be faster, less traffic jams and less fuel use...

I really would like to see some mandatory use of cruise control on some stretches of highway, even if just as an experiment


The adaptive cruise control in my Subaru rarely coasts. It isn't smart enough to see a gap slowly narrowing and start coasting, and it isn't confident enough to temporarily allow the gap to be smaller than the setpoint while it coasts to recover the gap. So it brakes and wastes energy, and I don't use it.

Truckers sometimes have a good reason to do that -- they can't brake or accelerate as quickly as a small vehicle, and thus can end up going very slowly if they stick with the right lane. To a driver going 3 exits down the 205 it's not a big deal, to a truck driver doing the same they may be at the end of a long haul up the I5 and every minute starts to count since it can affect their pay. And if you can avoid hard braking/hard acceleration in the right lane, that can help your fuel costs quite a bit since slowly coasting behind someone doing 5 under in the left lane is more efficient than jerking around in the right lane.

There are plenty of ramps on I5 and 205 that I merge to the left for because I know they will spill into the right and (when it exists) middle lanes. Because of how traffic also reacts to brake lights (some people brake too hard even when they have sufficient distance to let off the gas and coast to a slower speed) it seems like it ends up making my experience through those stretches a bit better.

Ultimately, any individual behaviour is largely irrelevant, it's what the whole mass of cars moving along does that affects things the most. Often you don't want to be the (significantly) odd one out regardless of the situation.


That's not a good reason, those truckers are just assholes. I'd like to see the authorities enforce the law and fine them heavily. Put them out of business.

I've done a few tours around the world on the interstate system, so I've seen my fair share of truckers. Yeah, some are assholes, but there are stretches and routes where their behaviour makes sense, even if I don't like it. It's on them for how they behave, but understanding why they behave that way can make it simpler to deal with them in real life. As real, squishy people, not a system of rules.

Would I love to see CHP or OHP fine every left lane trucker in the 'no trucks in left lane' zones? Hell yes, but until that happens, I understand the trucker behaviour.


Being a bit more nuanced, I dont mind a trucker in the left in a 2 lane section (they're likely trying to avoid bad interactions with merging cars from the right) ... but it does bother me when its 3+ .

Driving a truck is more difficult than it seems. They are extremely heavy, very dangerous, be careful around them.

This is what most frustrates me about driving in Florida. The right lane is nearly always the fast lane, yet is the lane with most 'events.'

When asked, they'll say they feel safer in the left lane because they don't feel safe having to deal with people turning out and merging. So you get instead people driving fast in the lane meant for pulling out and merging.


>It's wild to me how often the left lane is not the fastest lane.

Reasons vary, but a lot of the time it can be explained by left exits/splits ahead on the highway. Which some may call poor design.


> as long as you travel in neither the leftmost nor rightmost lane

What I really hate, however, is that plenty of people will cruise in the center lane but still not leave a decent gap between them and the car in front. They effectively turn a three lane freeway into two one-lane freeways by hobbling the ability of anyone else to switch lanes. The freeway moves way smoother when there is a modest, predictable speed differential between each lane so that people can find their way into the next lane over without having to force the issue.


But you’re not getting slower and slower for every car. Lets say 100 cars pull in front of you, and let’s be say each car adds 5 metres of space, so you have 500 metres of ‘lost’ space to regain.

At 30 mph how much later will you be? 37 seconds.

I’ll take that trade.


> let’s be say each car adds 5 metres of space

At over 100 km/h that would be ideally 5m for a car and 70m for a safe distance between each one so 7,5km, which is 4.5 minutes at 100 km/h or 9 minutes at 30 mph.


> as their opportunity to travel faster

You're ascribing motive where you have no data to do so.

> travel slower and slower

Roads near capacity slow down. This capacity surge is typically highly predictable.

> tragedy of the commons style, by opportunists.

People can only drive one car. They cannot drive two at the same time to get there twice as fast. I don't think this logic applies.


Or... you just drive so slow the gap is constantly growing. You can focus on fuel economy instead.

Someone else is taking your safety buffer as an opportunity to travel at all.

This exemplifies the problem with America. People will cut off their own welfare to make sure their neighbor doesn't get any either.


It brings me peace to see other people thinking this way. You should be an active participant on the highway, making decisions to maximize flow. Leaving space so people can merge, controlling speed to smooth slowdowns, anticipating traffic patterns, etc.

All of the people tailgating are contributing to the congestion.

https://youtu.be/iHzzSao6ypE


The trick I keep in mind in situations like this is to look at brake lights ahead of me. If cars are braking and I'm accelerating, I'm probably going to end up driving very inefficiently. By letting off the accelerator, I don't close the gap as quickly, and eventually, the turbulence in the traffic flow steadies out. Instead of stopping and starting, I roll at an averaged out speed, which doesn't feel as frustrating (it's kind of relaxing) and is better for fuel economy. There are, of course, the weavers who jump from gap to gap, tailgating and pushing. Sometimes it works, sometimes they just get jammed up.

I don't drive as often as I used to, but on I-76 coming into or out of Philadelphia, traffic gets snarled and becomes stop-and-go. Every now and then, someone next to me appears to have the same understanding of fluid dynamics as I do, and we build up enough of a buffer that we are able to eliminate the stop-and-go, even if it means rolling at 5mph with a big gap between us and the cars in front of us.

There's no good way to communicate what we're doing, even to each other. But I like to think that when this happens, it has a positive effect that ripples out for miles.


> I roll at an averaged out speed, which doesn't feel as frustrating (it's kind of relaxing) and is better for fuel economy

Yup. The brake pedal is an evil device that converts cash into brake dust and waste heat. Before I got an EV, I always drove in such a way to use the pedal as little as possible. As a result, in my previous car that was stickered at 24 mpg city/30 mpg highway, I averaged 32 mpg. I don't even drive slow, I just drive smoothly. If your average speed is going to be 5 mph, then you'll get much better economy driving a constant 5 mph than your speed being a sine wave between 0 and 10 mph.


76 is the worst

Funny that I could guess that the link would be to that CGP Grey video :D

Adam Something has a video responding to it that's worth watching too: https://www.youtube.com/watch?v=oafm733nI6U


"Turning urban areas into obstacle courses for pedestrians" was an excellent way to phrase that problem!

> making decisions to maximize flow

Good driving instructors make you aware of that early on, at least mine did.

I'm not saying that I'm a good driver, because I make mistakes like any other driver out-there, it's just that I oftentimes go with the "maximize the flow" thing instead of just following my individual "well-being" as a driver as a result of what my driver instructor told me some years ago.


> I will never understand why this is so rage-inducing for people.

The train of tought goes something like this. You want to get to your destination quickly as just like everyone else and are doing everything correctly, but the assholes exploit that safety distance as a gap available for them to switch into and repeatedly forcing you to break to maintain a safe distance. Oh and the even less rational people think everyone overtaking them has stolen their rat race position.

Leaving a keeping a safe distance feels unsafe since other drivers will squeeze into it. Subjectively it feels safer to close the distance, but the numbers don't lie. Tailgating kills.


The problem isn't merging, it's people that are changing lanes to get ahead.

It's especially not people trying to get off the highway because then they leave and you can catch back up to where you originally were.


> I will never understand why this is so rage-inducing for people

Putting my armchair psychoanalyst hat on: I think American society embeds a need to be the "winner", and are you winning if end up behind another driver who's contending for "your" spot?

If you've driven elsewhere for a while, you start noticing subtle driver differences, such as drivers who want to merge into your (slower) lane never braking to merge behind you and always accelerating to do so, even when you're at the tail end of a vehicle chain in your lane.


Driving in Melbourne -- I won't generalise to the wider Australia -- is often much the same.

Comparing to the experience of being a passenger on a bike in Saigon, the level of cooperation there is way higher, possibly due to a sort of necessity. I had this feeling while observing traffic there, that, while the latency and throughput of the roads during high traffic times are still kinda awful, at least for bikes there's a slow continuous progress that simply wouldn't exist without cooperation.

Funnily enough, my experience driving in Los Angeles was distinctly not terrible. Traffic was usually good enough to drive in, though there was very little regard for the speed limit on the freeways! I suspect I may have just been lucky to miss the worst of the traffic.


I'll tell you what I specifically and intentionally do when I need to change lanes. I brake slightly, signal, and wait for the person on my right or my left to pull ahead of me, then change lanes immediately _behind_ them. Then sit there for a moment until my following distance evens out a bit.

This ensures that

a) I do not cut anyone off accidentally, and minimize the amount of stress in my immediate part of the universe

b) I will (most likely) have plenty of room behind me after I change lanes, reducing chances of anyone else running up on me

c) If there's noticeable traffic, the time I spend signaling and waiting for the person to move slightly ahead of me gives plenty of warning to the people _behind_ them that I'm about to enter the lane.

Ultimately, yes, of course in principle you're right, when I change lanes, I enter the lane in front of someone.... but I _can_ control whether I enter as far as possible ahead of them.


You shouldn't be braking when changing lanes is what I was taught, you should be matching the speed of the lane you're merging to. There are many drivers who think that braking is always the right solution, when sometimes it's a little more gas.

And in inclement conditions, it can make the difference between losing control of your vehicle or not. When you brake, you decrease your steering ability in most cars. Fine when its calm and sunny in CA, not so much when it's icing over near Ashland OR on the pass.


Well, sure - braking is mostly relevant when merging to the slower lane, when merging to faster lane I generally do not need to - since that lane is already moving faster, just need to speed up slightly and time it for the right moment.

My point is, it feels safer and easier to aim to enter a new lane with the aim of "following" someone, rather than trying to rush in "ahead" of someone. But maybe it's just me.


It's considerate communication. Lurching into the next lane .08 seconds after the blinker first flashes says things like "Your life isn't worth the basic consideration and respect of communicating my intentions" and scales up to "I'll communicate, but you're not worth any sort of common courtesy" - that can be upsetting to people.

It doesn't even have to be real. There's huge room for miscommunication. Unpredictable movements and perceived aggression, or unwillingness to be considerate to other drivers on the road, there's a whole wealth of information being processed, regardless of how little is actually real.

Now add the total lack of accountability for the driver's emotional state (don't you love yelling at other drivers, completely free of judgement?), and you can see how things spiral into road rage so relatively easily, even if everyone involved is normally a pretty chill, rational person.

If you're tailgating or brake-checking, or being inattentive and sloppy, you're basically threatening people's lives with a few tons of high speed metal, even if you don't intend that at all.

Ideally, the rules of the road are meant to reinforce a mutual understanding of the game being played. Behavior occurring when expected, proper signaling, observing limits, and making the effort to communicate where possible is a signal that you and the other driver are both operating by the same set of rules, giving you both confidence that neither of you are going to be a danger.

I've seen little "cute" exceptions where locals develop a subculture of dangerous assumptions and then get aggravated when someone from out of town doesn't immediately get it. There are other areas where aggression and what amounts to flagrant disrespect are the norm, so you've always gotta be adaptive, but ideally you get people conspicuously following the same set of rules as a sort of game theoretic optimal strategy for driving.


It's frustrating when it eats into your safe following distance. The driver merging in ahead of you is being dangerous and not leaving a safe following distance for themselves (or you).

When traffic is heavy, everyone is likely following at [what they perceive to be] a minimum following distance.

It's simply not possible to merge during heavy traffic without eating into someone's safe following distance.


The buffer exists to be used. Allowing people to merge into it makes the lane that they came from safer. Build a new buffer.

It takes almost no effort to restore your safe distance again.

What's the problem with reducing speed and reclaiming a safe following distance?

You know very well that normal lane changing isn't what the person you're replying to is referring to.

Might depend on your location, but usually you are legally required to allow a merge. Which makes sense, the system stops working when two lanes that are required to merge, don't merge because people are being petty and entitled.

> It is clearly _possible_

Is it?

I don't think it is.

I truly don't believe that there's any possible way to verify someone's age without collecting ID from them.


It's possible to (cryptpgraphically verifiably) split up the age verification and the knowledge of what the verification is for.

It would seem like a naive solution would be some arrangement where Discord would ask for a proof-of-age from an official service ran by the State (which issues your ID)

Well you could have government-run cryptographically signed tokens. They're already in the business of holding ID data (i.e. they don't need to collect it and this wouldn't increase the attack surface).

But assuming it has to be a private solution, you could do the same thing but make it a non-profit. Then at least _new_ services you wish to use don't need to collect your ID.


many countries already have a working system mostly integrated, so yes, i would say it is possible.

the government should issue physical tokens that are sold wherever you can buy booze or smokes. when you login to a service that needs age verification, you type in the code from your age token.

its pretty cheap, its low-tech, we are already accepting of showing id to a store clerk privacy-wise, we generally trust the enforcement mechanisms around smoking/drinking already, it would be easy to expand existing laws to accommodate selling them/punishing misuse.


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