Beeftopia writes: Conventional wisdom has suggested selfishness is most beneficial evolutionary strategy for humans, while cooperation is suboptimal. This dovetailed with a political undercurrent dating back more than a century, starting with social Darwinism and more commonly seen today as a Randian philosophy. A new paper in the journal Nature Communications casts doubt on this school of thought. The paper shows that while selfishness is optimal in the short term, it fails in the long term. Cooperation is seen as the most effective long term human evolutionary strategy.