It's been demonstrated with positive energy output decades ago.
Originally Posted by mutleyeng
It wasn't in a sustained reaction though and it wasn't in a power plant, to it's been demonstrated to be theoretically viable rather than practically viable.
That "change everything", "too cheap to meter" stuff was exactly what was claimed of fission before it was realized how large installations are needed to do it effectively, and how many extra costs environmental hysteric can pile on top of things.
Reductionist and proud of it.
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