[Crimson_Wool]

The number of people who altruistically donate kidneys per year in the USA is like 1-200, so the fact that Scott knows multiple EAs who did so (and that the kidney donor people are used to EAs) is pretty high-tier evidence that either there are a LOT more EAs than I thought, or they do it MUCH higher rates than the general population.

[scarmig]

Scott alone donating would probably set the rate of altruistic kidney donation at a higher rate among EAs than the general population, at least for this year; there'd have to be around 2M EAs in the USA to match the baseline rate, while the real number is almost certainly significantly lower.