Agreed. The whole notion of "You can't trust your brain, and here's why and how" is probably the most likely to catch people's interest.
What category would that fall into? I guess "biology" would be the closest, but do we know if topics in cognitive science would be accepted?
Ars Technica are holding a competition for people to make a science video up to 3 minutes long "to explain a scientific concept in terms that a high school science class would not only understand, but actually be interested in watching". Prizes in three categories: biology, physics, and mathematics. Deadline is December 25. More details here.
Anyone want to have a go at Bayes' theorem? Cognitive bias? Defeating death? Invisible purple dragons?