Your Great^2,000 Grandfather’s Social Survival Mammoth was central to his ability to endure and thrive. It was simple—keep the mammoth well fed with social approval and pay close attention to its overwhelming fears of nonacceptance, and you’ll be fine.

And that was all well and fine in 50,000BC. And 30,000BC. And 10,000BC. But something funny has happened for humans in the last 10,000 years—their civilization has dramatically changed. Sudden, quick change is something civilization has the ability to do, and the reason that can be awkward is that our evolutionary biology can’t move nearly as fast. So while for most of history, both our social structure and our biology evolved and adjusted at a snail’s pace together, civilization has recently developed the speed capabilities of a hare while our biology has continued snailing along.

Our bodies and minds are built to live in a tribe in 50,000BC, which leaves modern humans with a number of unfortunate traits, one of which is a fixation with tribal-style social survival in a world where social survival is no longer a real concept. We’re all here in 2014, accompanied by a large, hungry, and easily freaked-out woolly mammoth who still thinks it’s 50,000BC.

Why else would you try on four outfits and still not be sure what to wear before going out?