I think this has been mentioned before in this thread, but a quick search I did failed to find any relevant post (so if anyone can point to it/them, I'd be grateful).
Disclaimer: I do not understand the "Mills theory" (or that from/by michaelsauve - "ms" - as appropriate) that "permits" the existence of hydrogen atoms in a 'fractional' quantum state (i.e. below what textbooks will tell you is the ground state). If any member reading this does - here's looking at you, ms - would you please jump in and comment on my observations? Thanks.
Fractional quantum states are not limited to normal (single proton as the nucleus) hydrogen, are they? Deuterium (D) and tritium (T) should also have such states, shouldn't they?
One implication: controlled fusion may be easier to establish with fractional quantum states of D or T than H, and both D and T are readily obtained in large quantities (national security concerns aside). So a trivial fraction of the money currently being devoted to controlled fusion (e.g. ITER) might serve to test the feasibility of using "Mills' D" (say) for a controlled fusion reactor. Such a thing would be a far, far, far ... better choice of a 'free power' device than what Mills (and ms) is currently promoting, don't you think?
Next: why just the first element in the periodic table? Why can't there be fractional quantum states of helium? Carbon? Iron? Uranium? At the very least these should exist for the H-like ionic forms, right (i.e. singly ionized He, doubly ionized Li, ...)? Or elements with a single electron in their outer shells, such as Na, K, Cs ... If so, then perhaps there's a really simple way to deal with radioactive waste: just as a fractional quantum state may lead to fusion in D, at least some similar states in a radioisotope will lead to 'forced' decay; no need to wait for decades+ for nasties such as
90Sr to decay, just put it in a "Mills cooker" and force it to decay in days, if not hours!

Even if it's necessary to create H-like ions, the energy output from such a cooker would surely be sufficient, wouldn't it?
Finally (for now): why not molecules too? Why can't what textbooks say is the ground state of H
2 be tricked/coaxed/scammed/(etc) into "falling" into a lower-energy, fractional quantum state?
In short, I think - if the above is even half-way true - that Mills et al. (and ms) are dolts, bonkers, eejets, ... throwing away the chance to be Nobel Prize winners (and recognized as the greatest scientists ever) - as many have already pointed out - is nothing compared to ignoring the immense opportunities of exploiting fractional quantum states in elements other than hydrogen, and in molecules.
