Julian Schwinger (Physics Nobel Laureate-unfortunately now deceased) did not agree. Neither does a mountain of experimental evidence. Atoms sequestered in a lattice behave differently than atoms in a hot plasma.
What we lack is "engineering reproducibility" to make it happen every time tried.
Nobel prizes ain’t what they used to be since Jug Ears got one. And as well, all goes differently in a lab than commercially. Seemingly, it will always take more power to make power except for a few milliseconds in a lab.