> I think much of conventional wisdom about weight, diet, health is wrong. If they weren't alive, it would be a few other old people you would use as examples.

> I think much of conventional wisdom about weight, diet, health is wrong. If they weren't alive, it would be a few other old people you would use as examples. Even if conventional wisdom on those topics was bang on, you'd still be able to use this reasoning thanks to survivorship bias.