[IanCal]

I agree.

I think there's a big benefit in finding out that you're often wrong. It's easy to look something up and go "yeah I knew that" when really it was just one of the things you thought might be true. Regularly seeing that what you were really, really sure about is actually completely wrong after having to try and justify what you're saying is wrong (e.g. that X was in film Y, etc). Similarly, realising you don't understand something too well when trying to explain it to someone else.

Also, mistakes and weird misconceptions form bits of jokes that grow and change over time.