I like the idea of finding the why first, that makes total sense for figuring out what you want to learn.

Yeah, I think the 2-4 times longer estimate is where I'm at too. Which, generally speaking, I can factor that in when I'm planning something

I really like the slow and steady process myself, with just a few minutes a day, but that's because I like to learn a bunch of stuff at once. Do you have a method?

Sharing is a little clunky since there's a password exchange—or obviously you can just not share encrypted files...