are: #500 LudwigVanQuixote

IIRC fusion actually has reached break even back at Princeton in the early 90’s.

Nah, as I referenced above, the Princeton reactor (the TFTR) never broke-even, although it did come closest for its time. Unfortunately it was shut down in 1997.

We’ve since come closer with the JET, and we expect to know for sure whether break-even is possible or not with the ITER.

Unfortunately, most fusion research in the US has been scuttled. It was not re-funded in the late 90’s and the Bush era officially killed it dead. Most of the research is now being done by Europe and Japan.