Thank you for starting a great thread. I am trying to sort this out right now. I am 71 and still work (remotely) very much part time as an advisor to a South K

Thank you for starting a great thread. I am trying to sort this out right now. I am 71 and still work (remotely) very much part time as an advisor to a South Korean AI company. I am at the point where I don't think that I am helping them much anymore and for the last week I have been thinking hard about what to do. I also feel that I am now too old to do professional software development; I would rather just work on small personal open source projects. I did just start a book project, and I reverted to using TeX/LaTex (I have been using Markdown on Leanpub.com for the last decade for writing). I love TeX because it allows me to write different editions of a book easily for different programming languages, nicely factoring out non-programming background material. I have also fetched my old train set from the attic and I am considering starting to fly again: both remote control model airplanes and flying lessons (I too about 10 lessons 25 years ago).