Some of us trust our brains far more than we should. We often wonder why others don’t see the glaring solutions to complex social and political problems. Things that are just plain common sense. And we may shake our heads, perplexed that the obvious is such a point of contention and debate.

But consider this. You buy a bat and a ball for $1.10. The bat costs $1.00 more than the ball. How much is the ball? If you answer, “duh, 10 cents” you won’t be alone. In fact, you’ll be in the majority, it’s just common sense. And it’s just plain wrong. Our brains take short-cuts. Thinking about things quickly and superficially saves energy. And quick decisions may ensure our survival (or end us.) But we have slower, more accurate, circuits to think about things in more depth if we must. This is why, other than fight or flight, for more complex situations we need to reign in this instinct for snap decisions. Thinking Fast and Slow by Daniel Kahneman covers this engaging topic in-depth. And, by the way, the ball costs five cents. Think about it :)