Yes but many people will need to "train a little" to be able to walk for 30 min without stopping for a breath. Same with cooking pancakes, or programming.
I think my idiomatic phrasing of "some" is probably the problem here, so let me be more explicit. For me (and many other people), I would need to train a lot to run for a mile.
As I am in fact currently training to run, I can tell you that it has taken me two months so far to get to a stage where I can only walk/jog for twenty minutes, not yet actually run a full mile in one go. I expect to be able to do that at the end of this month.
It is not level one.
Uh... I'm really sorry to say this, but training for three months to run a mile is not average. You're probably training incorrectly. I just looked on the internet and most programs for beginners say that after 8 weeks you should be running about 2 miles in one go, and they use a very relaxed training schedule (20-30 minutes, 3 times a week).
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"?