> In that scenario AI and robots produce everything, the owners of those AI companies can trade their AI's output with other AI/robot companies, robot and chip manufacturers and commodity owners? So 10000 people world-wide are fine, everyone else is not?

That scenario is not really any different from having a technology advanced country (like the US) alongside some underdeveloped nation. The US could, in theory, close its borders and produce everything it needs itself, and leave said underdeveloped nation without the benefits of, for example, Netflix, Nike & Nvidia.

But it won’t, it’s not economically efficient. Economic theory (of comparative advantage) tells us that there’s always something that the less developed world can produce relatively cheaply, in exchange for sneakers, streaming services, and G-force Now subscriptions.

It cannot. Only reason the US is rich is because of foreign countries buying and trading in Dollars. If that falls the US is toast