[rtkwe]

Molten Salt reactors are designs from the 60s-70s and afaik no one ever built on commercially. No one was willing to take a gamble on building a new design when we had working reactors already and approval for those was already difficult enough.

[dalyons]

AFAIU the corrosion problems are still not solved from a commercial PoV. Ie, without having to shut down and replace piping too often for it too be viable.