> Pop quiz: You’re going to get hit by something coming at you at 50 miles per hour; given equal mass, would you rather that be a small object, or a large object?

> Whap! Time’s up. What did you get hit by? If you picked small, you might be dead. If you said “large,” your odds are lower. Why? Two reasons. First, F=ma and second, P = F/A. OK, I suppose that’s really just one reason, and it’s called “physics.”

I drive a big SUV because I have a better chance of surviving if something hits me. That has to be a significant statistic somewhere too, right? How many lives were saved because of big cars?