50 in 50: What hobbies have I had in the past that I no longer have?

The major one that comes to mind is conlanging. (For those not in the know, that is the process of constructing languages). Nothing happened, except that I stopped doing it. I found it to be very useful to learn a lot of linguistics, and gave me a sort of reason to want to read linguistics papers. Over time, I found that I was mostly having to go through the weeds and do many tedious things, e.g. mapping out how sound changes would affect the descendent language, thinking about semantic changes, etc. in a way that began to feel very routine and a little tedious. So, I stopped.

Programming is another hobby that, while I haven't stopped completely, I definitely don't do as much as I used to. I want to pick it back up again, though, and have for several years...