Terry Pratchett. Ladies and gentlemen (№ 356718)

What is magic?
Witch answer this question in different ways, depending on their age. Older witches generally don't like to talk about it, but in their hearts they suspect that in fact the universe does not know shit and is composed of billions of trillions of millions of opportunities, each of which can be carried out, if a trained, hardened by quantum confidence the mind to create a crack and to turn. Thus, if you want someone exploded a hat, just need to move in that universe in which a great many molecules of a hat suddenly simultaneously decide to scatter in different directions.