1) We still don’t know yet. If we are not observing some statistical noise, then it’s possible that it’s either bimodal (some have it, some don’t) or it has a very weak effect.
2) Visualizing only the positive outcome, as far as I know, doesn’t work. There’s an interesting book about it: Rethinking positive thinking, by G. Oettingen. I’ve only skimmed it though, and I don’t know how sound are the citations.
1) We still don’t know yet. If we are not observing some statistical noise, then it’s possible that it’s either bimodal (some have it, some don’t) or it has a very weak effect.
2) Visualizing only the positive outcome, as far as I know, doesn’t work. There’s an interesting book about it: Rethinking positive thinking, by G. Oettingen. I’ve only skimmed it though, and I don’t know how sound are the citations.