I feel like the argument he makes is very circular though. He lambaste the rich for investing in low risk (government bonds), and then says that we need more ta

I feel like the argument he makes is very circular though. He lambaste the rich for investing in low risk (government bonds), and then says that we need more taxes to support more government R&D. Perhaps the answer isn't a return to a different tax structure, but the government acting more like a corporation (in this limited area). Making money off their R&D and financing it through debt.