Thanks :) The thing is -- often it's very hard to know in advance how much time you would spend on something. You think "ah this would be kind of a nice feature

Thanks :) The thing is -- often it's very hard to know in advance how much time you would spend on something. You think "ah this would be kind of a nice feature to have/question to answer... hmmm it'll probably take only an hour", and then you spend weeks doing that, and something else related, etc. Sometimes you do wish you hadn't bothered in the first place, but then it's also sunk cost so it's tempting to finish. You know what's crazy -- I started with simply trying to improve my sleep (so exorting data from Jawbone bracelet) and wanting to be a bit more efficient at learning physics (and other things) in my spare time. I did learn some physics (and other things) thanks to all these systems, but certainly went down a massive rabbit hole too :)