So here's the question. Should you tell your children that Santa Claus bring presents if they're good?
A recent article in the Lancet discussed this, without, of course, coming to any conclusion.
I think it's easy. Yes, you should tell your children that Santa Claus bring presents if they're good, because when they find out that you're lying, it teaches them the valuable lesson that not everything that other people say is true, even people in authority. And in particular, extraordinary claims require extraordinary evidence, and claims about invisible, immortal, all-knowing and all-powerful entities should be treated with a considerable pinch of salt.
This Christmas, give your children the gift of scepticism.