The only limit is physics
I do not believe. The limits are those you set out above ... in our minds. The resources are there, but we do not want to touch any ... for all kinds of reasons. Thus, there are problems but no solution!
You are viewing a single comment's thread from:
I agree with this. Physics can tell you that this or that is doable but humans do not want to touch it or invest time and money in developing the proper device to use it.