There were two raw eggs, both fell from a height of six feet. One broke and the other did not. Why?
Both eggs were identical. Each egg was raw. Each egg had a shell roughly 400 micrometers thick; but, the answer is quite simple: one was prepared for it and one was not.
One egg fell and it was surrounded by a box, padding and even had a parachute to slow it down while the other was all alone in its naked form. Both were equally eggs. Both were full of the same good stuff. Both were born on the same day, and both had achieved the same height. However, one had been prepared for the fall.