I don’t think that’s necessarily true, since it could even cause problems during their lifetime (~20 years?). It could cause problems for their children, friend

I don’t think that’s necessarily true, since it could even cause problems during their lifetime (~20 years?). It could cause problems for their children, friends, society, loved ones, and so forth over the next 100 years and that could be construed to be a personal risk. However the heat death of the universe can’t possibly affect with certainty any entity we now know, even the earth itself or solar system. The difference between 10^2 years and 10^100 years is significant enough for me to discount that comparison.