We have all played with dirt and sand. Most of us can recall the first time we played with dirt and world of possibilities it opened. Suddenly we could "build" castles, highways, cities... But if you are like me, those possibilities quickly came to a halt when water evaporated and the soil or sand became dry and lost its shape. So you can image my thoughts when I saw a video claiming he'd "Engineered" dirt to support the weight of a car. Really? How can this be? What...