There's a saying in the physics world, that you don't understand something unless you can explain it to a barmaid. There's also a traditional belief that you re

There's a saying in the physics world, that you don't understand something unless you can explain it to a barmaid. There's also a traditional belief that you really discover the gaps in your understanding when you try to teach it. Programming languages are intended to be human readable, so it's not entirely surprising that if you can't explain something to humans, chances are you might not be explaining it very well to the computer either.