[moron4hire]

If anything were ever invented that looked like "reactionless drive", I'm betting dollars to donuts the idea it was reactionless would be short-lived and eventually it would lead to updates in our understanding of matter and what reaction means. Like, maybe some day someone discovers a way to emit gravitons. IDK, I'm sure someone thought the idea of emitting photons without the use of a chemical reduction reaction was preposterous at some point in time, too. But then the reaction would be with space itself. By the end of it, it still wouldn't be "reactionless".