Do you know any game (video or board game, singleplayer or multiplayer, for adults or kids, I'm interested in all) that makes good use of rationality skills, and train them ?

For example, we could imagine a "Trivial Pursuit" game in which you give your answer, and how confident you're in it. If you're confident in it, you earn more if you're right, but you lose more if you're wrong.

Role-playing games do teach quite some on probabilities, it helps "feel" what is a 1% chance, or what it means to have higher expectancy but higher deviation. Card games like poker probably do too, even if I never played much poker.

I haven't used a trampoline since I was a teenager. My neighbors had round one that I would guess was 12-15' in diameter. There were numerous injuries that I can recall, the worst being a broken leg. All of the injuries that I recall were due to what I would consider (now) to be inappropriate use. We would play dodge ball where one or more people would be on the trampoline and people off of the trampoline would throw a ball at them. I chipped a tooth doing that. Sometimes we would put a lawn sprinkler underneath the trampoline if it was really hot. I believe that is how the broken leg occurred. We did many other less stupid but still somewhat risky things, too, like doing front and back flips and seeing how high we could jump.

My point, though, is that if you do find any safety statistics take into account how they compare to how you would actually use it. Do the stats take into account the stupid things teenagers do on them?

This is not a product recommendation, but a request - it looks to me like trampolines should be large amounts of fun. However, when I tried to look up risk statistics, I found lots of dire warnings and, of course, no numerical annual risk statistics at all, or any attempt to adjust for safer trampolines with surrounding safety netting. My one attempt to calculate risk statistics on my own output a 0.1% chance of an injury requiring hospitalization per year of trampoline use. That's probably more risk than somebody in my position should take on, even for the sake of exercise. Does anyone know of more accurate statistics than this, or a safer trampoline with recorded risk statistics, or have a strong opinion on whether trampolines are safe enough to use?

Gorillapod. Works great, helps me take awesome pictures.

http://www.gutenberg.org/ebooks/22603

They say, Wikipedia could be translated from English to Spanish in just 80 hours their way.

I doubt, it would be without major errors.

Never the less, it is a moderately interesting idea.

Awesome! Does anyone know whether the course material will stay up after the classes are completed? I won't have enough time to take all classes I'm interested in (actually, I'll probably not have the time for a single one of them) but would like to use them later.

Sometimes with small children, I get the impression they're asking "why?" for the social interaction rather than to actually get answers.

The story I tell myself about this is that at some point every child learns that there is a magic word, "why", that always keeps a conversation going. I will test this hypothesis the next time a kid does this to me by responding with nonsense.

"Why?"

"Because zebra donkey tomatillos."

"Why?"

"See, you're not even listening."

"Why?"