xkcd's What If?

If you pointed the Hubble telescope at the Earth, what could you see? Could you read over your neighbor’s shoulder? Or would it all just be a big blur?

Since we usually hear about earthquakes with ratings somewhere between 3 and 9, a lot of people probably think of 10 as the top of the scale and 0 as the bottom. In fact, there is no top or bottom to the scale!

What if you ignored all the rules of car racing and had a contest which was simply to get a human being around a track 200 times as fast as possible. What strategy would win? Let’s say the racer has to survive.