This video should be required viewing for everyone. Everyone. Those who make statements they can’t back up, or on too little evidence. Those who battle the superstitious, the apologists and all the other forms of logic-challenged life. And by battle, I really do mean battle: just saying “I don’t believe it” or “that is inaccurate, here’s why” can be perceived by some as a call for a full-out assault on your hold on reality. They can swiftly become very insistent, aggressive and even abusive; you need only read the comments in the science sections of online news sources to see how fast things can go downhill.