They seem so at first glance, but you have to build a couple of sheilds -- one for nuclear debris and the other for interstellar debris. There are also other pr

They seem so at first glance, but you have to build a couple of sheilds -- one for nuclear debris and the other for interstellar debris. There are also other problems with emission, fuel, etc. Issac Arthur has a good video on it (https://www.youtube.com/watch?v=3aBOhC1c6m8 https://www.youtube.com/watch?v=3aBOhC1c6m8). All of Issac Arthur's stuff is, quite frankly, amazing. He has a clear understanding of the material and manages to convey it in a way to laymen, like no one else.