“Do you feel like your food is unnaturally abundant and therefore your desire to eat it can betray you?”

“Sure”

“Do you feel like your software development job has you more sedimentary secretary than the millions of years of ancestors that came become you?”

"I suppose "

“Do you think the contrived , artificial society that we live in has undermined your ability to cooperate like your ancestors did for millions of years?”

"No, I’m simply doing human nature "

If humans are selfish, then why big brain and big noticing other people’s reactions?