[pbasista]

In general, it seems to me that an abstract resource like AI cannot possibly be regulated. Even if US forced their hand and took ownership of the controlling stakes in the current major AI companies, what stops the other AI companies from raising up and doing whatever they want?

Perhaps the assumption is that these large AI companies need large datacenters to operate and that is how they will be regulated. But what about the datacenters outside the US jurisdiction? And what about local AI?

In the old days, the computers were huge and there was one per city. Now, several decades later, we all have plenty of our own computers. I cannot imagine why the trend would not continue with AI. Over time, it is in my opinion plausible that most of our common needs would be satisfied by local AI running on one's home servers or even phones.

How is that going to be regulated by owning a controlling stake in a few US AI companies?

I do not see into the details of what Mr. Bernie Sanders is suggesting. It seems to me though that his idea of somehow regulating the AI needs further development. Because the currently discussed approaches seem to me like a hot take that has not been thought over very well.