I fear that, in the end, the famous debate among materialists, idealists, and dualists amounts to a merely verbal dispute that is more a matter for the linguist than for the speculative philosopher. ↗
One of the things that we can say with confidence is that we will have much lighter, much stronger materials, and this will reduce the cost of air flight, and the cost of rockets. ↗
The first approximation in this future that we're looking at is that everyone will be physically well off. They will have a great abundance in material goods, and I think that will soften some of the conflicts we see now. ↗