What if?..

A good joke becomes even better when you tell it with an absolutely serious face. Randall Munroe jokes very seriously - to the most absurd questions, he responds armed with powerful scientific tools. Super-modern computer simulations, defense statistics (previously classified), consultations with leading experts in various fields of science - all serve one purpose: to competently, thoroughly, and scientifically correctly answer the most unexpected questions.
What if you dropped a raw steak from space? Would it cook 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 across the Atlantic from Lego blocks?
What if?..