I want to talk a little bit about "crackpots".

For many social and personal reasons, some people do not have the necessary skills to reason scientifically. They construct theories that do not hold to scrutiny.

But apart from the outliers, the truth is that 99% of what we believe, all of us, has not been deduced formally. We make judgements based on experience under incomplète information. We hear something on the news or at a bar, we talk to our friends or to our local cook, mechanic, doctor.