- The post I was replying wasn't about that part as far as I could tell. - The exact same reasoning has been applied to why we commit altruistic acts by richar

- The post I was replying wasn't about that part as far as I could tell. - The exact same reasoning has been applied to why we commit altruistic acts by richard dawkins (sorry no reference). The general idea is that certain behaviours are somewhat hard-coded and applying them to everyone was a good enough approximation for helping your close relatives in the past. - This is speculation. Generalisation is quite rational when speculating.