I think people tend to vastly underestimate what we're capable of in terms of computing infrastructure. In the 1930's AI was done on pen and paper (Turing's chess engine) and in the early 1990's supercomputers were still a single cabinet systems. We're far removed from those times but there's also room to grow. Then there are those who have kneejerk opposition of us utilizing our planetary resources for AI, they are entitled to their opinion but I don't think it does any good to listen to those types of people.