> It does not explain why someone would jump into a river to save a drowning child that they do not know even at the cost of their own life. Yes it does: http

> It does not explain why someone would jump into a river to save a drowning child that they do not know even at the cost of their own life. Yes it does: https://en.wikipedia.org/wiki/The_Evolution_of_Cooperation https://en.wikipedia.org/wiki/The_Evolution_of_Cooperation