And as a bonus:
How Cognitive Bias Messes With Your Mind
You know how there’s a new drug/terror organization/danger/evil overlord, and suddenly it’s everywhere? No matter where you turn, there they are, big and threatening. The world is going to die!!!
Well, it turns out that it’s far from true. What happens is that our minds are more prone to see things we’ve recently learned. And they’re prone to creating patterns out of what we see. So we learn something, start noticing it, and, voila! we’re seeing it everywhere.