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Do You See Interstellar Travel as a Realistic Application?
I don't think this is something that we want to do anytime soon. We have big problems at home. And the distances are just enormous, even if you can travel near the speed of light going to some other solar system to explore it will mean that when you come back, your whole family is gone. The chances of finding something interesting somewhere else is also fairly remote. So I'm not one who's pushing for us to go into deep space anytime soon. But if you were to, you need a lot of thrust with not a whole lot of fuel. And the process is the process that has the most energy per kilogram is fusion. There's only one that's more than that