Josh Hallman writes: "My friend and myself are riding our 29mph scooters across the US. Our internet viewers get to decide on our route as we head to the east coast. We give them different options for our route. We left LA about 2 weeks ago and are currently in Utah, one scooter is on the verge of breaking down and if this happens we will be pulling a dumb and dumber. Please check the webpage intransit.tv"
We warn the reader in advance that the proof presented here depends on a
clever but highly unmotivated trick.
-- Howard Anton, "Elementary Linear Algebra"