Humans are not rational beings. A tremendous fraction of our thought processes arise from instinctual programming from survival in an era much different than ou

Humans are not rational beings. A tremendous fraction of our thought processes arise from instinctual programming from survival in an era much different than our current environment. A fully rational being would look at a burning house and decide the 70 year old man is more worth saving thnn the five day old infant,but thinking like that isn't going to result in maximum reproductive success for your genes in the dangerous, resource - scarce environment we evolved in.