Was there another online service that inspired you to create Candy Japan, or was it filling a need that you yourself had?

I think I saw BirchBox and thought that sending surprises in the mail was an idea that might work for other things besides beauty products as well.

If anyone today is struggling with kidney stones, I suggest trying a roller coaster: https://www.nytimes.com/2016/10/04/science/roller-coaster-ki...

I really did get one out. Like 4-5mm big, after a roller-coaster. Sudden movements tend to "unblock" stuck stones in the kidney.

It’s this kind of revelation which makes HN worth reading.