Sadly, math requires me to pick some sort of number. I was mostly just tired of hearing "cryonics wins because it produces infinite years, vs finite mortal years." It takes a very optimistic assumption to produce an infinitely long and still-fun immortal life, and seems to be less reasoning and more a Pascal's Wager.

I figured Fun Theory would produce a quick and relatively unobjectionable number, and certainly didn't think I could produce a better number via any other method. The actual value is relatively unimportant to me, and I recognize the sequence as being especially tentative.

If one wishes to conclude that there is no viable number due to the error bars being too huge, that's fine. It just means "years lived" is an unevaluable criteria.

You can choose not to use math but you can't avoid choosing between alternatives. Perhaps we implicitly assume that either the "fun-years" or cryonics probabilities are lower than those used to account for the fact that there is no cryonics charity?

The entire Fun Theory sequence needs to be marked as highly speculative, relative to the rest of the Sequences. Some of the speculation gives us tentative lower bounds on Fun, but some of it (like Continuous Improvement) should be used in qualitative senses only.

Do you think it's too large, too small, or just has huge error bars?