What if?..

A good joke gets even better when you joke with a completely serious face. Randall Munroe jokes very seriously — he answers the most ridiculous questions armed with ultra-powerful scientific tools. Super-modern computer simulations, defense statistics (which were strictly classified... until recently), consultations with leading experts in various fields of science — all of these serve one purpose: to competently, thoroughly, and scientifically correctly answer the most unexpected questions.
What if you drop a raw steak from space? Will it get cooked as it enters the dense layers of the atmosphere? What if all the people on Earth jumped at the same time? What if we built a bridge made of Lego blocks across the Atlantic?
What if?..