One of the first amusement park rides you ever rode as a child was most likely the carousel. You chose the most colorful and bejeweled horse. Your tiny legs sprawled across the saddle, not nearly long enough to reach the stirrups. You squeezed the brass pole, one sweaty hand above the other, excited and nervous at the same time. Mom or dad stood next to you, holding you, reassuring you’d be safe. As the calliope music began and the carousel started to turn, your horse inched forward and at the same time began to rise and glide down again, over and over. The ride picked up the pace until you reached a smooth gallop on the twirling carousel, the world around you passing by in a blur.