Conversation

I think that one of the most harmful myths around computers is the one saying that you have to be smart to program one. It scares a lot of great people, and attracts a lot of people who are not so great, and only come for the bragging rights.
Using (including programming) computers does not require above-average intelligence. Most programmers I've met are in fact incredibly stupid most of the time. And it's fine, it all works somehow.