We already tried that, didn't we? Several national gov'ts, subsidized the building of hundreds of reactors, trained gillions of nuclear scientists and engineers

We already tried that, didn't we? Several national gov'ts, subsidized the building of hundreds of reactors, trained gillions of nuclear scientists and engineers, etc. And indeed, nuclear power still is a bigger fraction of US electrical generation then renewables. Obviously, a new effort might yield a break-through the old one didn't. But it seems likely all the "low-hanging" fruit in lowering reactor costs have already been picked.