Cold fusion does work, we use it all of the time (to enrich uranium for instance). (Cold being at sub-stellar temperatures, that is). Cold fusion that is an en

Cold fusion does work, we use it all of the time (to enrich uranium for instance). (Cold being at sub-stellar temperatures, that is). Cold fusion that is an energy source is a bit harder, as we would have to both find what specific arrangements out of the trillions of quintillions of possible atomic or molecular configurations would work to enable a sustained sub-stellar fusion rate but also have one that releases atomic energy from the reaction at a surplus to the energy needed to sustain that reaction. It's one of those things that will either be solved by an amateur scientist in a basement (perhaps with some fancy AI-enhanced atomic modeling software?) or by the investment of billions of man hours across a long stretch of time. I believe it is doable as well, but I don't think that it's a simple task that someone can throw together haphazardly. It will happen (in a repeatable way) when we know how and why it will happen before it happens and not a moment sooner.