Martin Fleischmann — English Scientist born on March 29, 1927,

Martin Fleischmann FRS was a British chemist noted for his work in electrochemistry. Premature announcement of his cold fusion research with Stanley Pons, regarding excess heat in heavy water was a media sensation although they continued their interest and research in cold fusion... (wikipedia)

Usually, if you have a new idea, you very rarely break through to anything like recognizable development or implementation of that idea the first time around - it takes two or three goes for the research community to return to the topic.
The problem is that replacement of Quantum Mechanics by Quantum Field Theory is still very demanding.
Now, of course, cold fusion is the daddy of them all in a way, in terms of value, so I think that viewed in a social way, from the point of social considerations and economics, it will tell you that this thing will stay around.
Now Stan and I were still working in secret at that time but, because of this development, we had to inform the University of Utah because we thought that they might need to take patent protection.
I don't know whether you have done your calculations but, about two or three years back, I did a first assessment of what the first successful device would be worth and it came out at about 300 trillion dollars.