The effects of survivorship bias

When we ignore the logical error of the stories and advice we hear it deceives us into believing that past failures are not adequate enough to be considered.

This bias induces people to see correlation in sheer coincidences.

A great example is when the U.S. Military tried to reduce aircraft casualties back in WWII. They analyzed the planes that got back safely but never the ones that didn't. They concluded that they should increase armor in the wings and the tails of the planes, but not the engine.