[quote=@Keyguyperson] Negative energy is a thing that we know how to use right now. We just have no idea how to get it or even if we [i]can[/i] get it. Besides, RKV are things that we don't have right now purely because nobody specifically wants to use them. [/quote] We have also already created a antimatter, and even managed to hold a atom of antihydrogen stable for a half and hour. Also nano machines [i]not[/i] being a thing in the near future is hard to believe.