very nice post. The biggest test on this front that I've faced is a game called shallow water blackout. Best played with people you trust (I did it with climbers I trust my life with), and I don't suggest this game unless you really want it. Better without drugs or alcohol. Bucket of water and tapping on a table with your head in the bucket. Your buddy/spotter pulls you out if you stop tapping. Not when the tapping gets erratic. The last moments before going unconscious are interesting. The waking up even more so...
It's like a version of holding your breath until you faint, but it has real consequences/risk. Aspirating has a pretty high rate of bad shit happening and will happen sometimes in this game

One further comment, I think that this
Quote Originally Posted by spoonitnow
I
Why improve our willpower? Let's say your current willpower can be expressed as a real number between 0 and x where x is the highest amount of willpower you are able to possess as a human being, and 0 means you have absolutely no willpower and you're dead. If all else stays the same, an increase in willpower would mean an increase in your productivity, effectiveness, and confidence in everything you do.
is not quite right. It's also about, and dependent on, application, but you know that already