The machine, the cables are lifting you from the ground level up to the high point. They're giving you what's called gravitational potential energy. And so when I look at any amusement park, I look for the roller coaster that has the highest spot. So I know that'll get me the highest speed. Plus you calculate. Get a physics friend to do this for you. You can calculate what speed is required for the cars to go completely upside down and not fall out of the circle. There's a speed. I mean, below a certain speed, you don't make it.