Okay, so I'm pretty far up each of the skills trees.
I just signed up for Teleportation V. Despite donating 1396 (deliberately just 4 skinny points shy of an emblem worth only 1000) favor from Lem, the learning time stands at a crushing 10 days, 15 hours, and 44 minutes!
If I spend an emblem of Lem, learning time will only be reduced by a pathetic 2 hours and 46 minutes. It hardly seems worth it. (I have two Lem emblems—hah, trying saying that ten times fast!—that I could use toward an icon OR towards faster learning.)
So, what to do? Donating favor seems like spitting in the wind. Is it worth it?
Of course this is just the beginning of a disastrously long slog: All the other substantial skills I might want to learn take equally long: 8 days, 13 days, and so on. Even the few "beginner" ones have now ballooned to day-long undertakings. I foresee long periods of time where I won't be playing because nothing will have changed for my glitch. (And there haven't been any street projects to keep me occupied in quite awhile. Nor have I seen any rook attacks while I was in world.)
I love learning, but this is very discouraging. The slower I learn, the fewer quests I have. That leaves me with the tedium of mining and harvesting and tending but no novelty or adventure.
Oh, and if I want to "speed things up" by doing Better Learning V: yeah, that'll take 13 days. Which makes no sense at all.
I welcome advice from others who've made there way through this morass successfully. What should I do?