His brother also posted a comment, https://jakeseliger.com/2024/08/04/starting-hospice-the-end/... , about his brother's death - slightly different wording than the GoFundMe update.

Thanks for the link.

Bizarrely, the post on Marginal Revolution links to a post from 5 days ago, and it's easy to confirm that Jake was still alive when that post was published. (And, apparently, for almost a week afterwards.) The gofundme appears to be the only source that states he's died, and the MR report doesn't even mention it. (Other than to include a link to it in a quote from someone else.)

This is his brother. He passed away around 8:30pm on Wednesday. He was still reading, writing, hearing from loved ones up until the end.

So sorry for your loss, and grateful for Jake’s writings about his journey - tough but invaluable reading.

Hope you and Bess are doing as well as can be hoped for under the circumstances.

Jake's writing was on hacker news 4 days ago and he was still replying to the comment at the time: https://news.ycombinator.com/item?id=41157974

Rest in Peace, Jake.