Do you remember how, as a child, some jobs seemed so cool you couldn’t believe people got paid to do them? Like working in a chocolate factory, being a test driver for Ferrari… or did you ever dream about designing roller coaster rides? British Brendan Walker actually does just that! After designing jet fighters (!), he now develops rides for some of the world’s top theme parks. PingMag talked to Brendan about the delicate science of thrill when calculating arousal and pleasure.