I've added to the "memory" one: for short-term memory, using dual 1-back. No idea if I've made that one too hard....
I've also reduced the difficulty-level for the endurance one. I think "brisk walk 30min" is level 1. "run a mile" is at least level 2 as it requires some training to get there.
Whoops, didn't see your comment at first. Sorry. Replied about n-back in another comment. Also, do you think none of the tasks for level 1 should require any training? SarahC, who proposed using the ExRx scale for strength, said she had to train a little before she reached the "untrained" level.
I just got this random idea that people who want to become better at life could benefit from a common scale of "leveling". No, I don't mean vague Lesswrongey things like "changing your mind". I mean a set of concrete criteria like "you qualify for level 2 if you can do 5 pull-ups, have solved 30 Project Euler problems, and did 10 cold approaches". Obviously there would be separate ladders for different character classes, but not too many. Also obviously, my example was a bit too high for level 2. So I guess I really want to ask some meta questions here:
1) Do you think agreeing on a common leveling scale would be a good thing for a substantial subset of LW users? Would you feel good about leveling up and telling other people about it on LW?
2) Is there some good way to determine leveling criteria that are neither too high nor too low? Maybe make an intermediate scale of "experience points"?