I don't agree with that. 1) because knowing a fact doesn't mean that you really understand it or that it's really made an impact beyond a theoretical awareness.

I don't agree with that. 1) because knowing a fact doesn't mean that you really understand it or that it's really made an impact beyond a theoretical awareness. Repeated exposure can hammer it home. And 2) because a lot of people don't know things you know. Even the simplest thing you know, you didn't know until a certain point, and some people haven't reached that point yet. And every day people are born who don't know it yet, or people can be convinced that things are different. For these reasons I think it's important to keep broadcasting the message