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Even if major funding is obtained for cold fusion, conceivably the phenomenon could suffer from problems as intractable as those of hot fusion. It may never work reliably or generate enough energy to be commercially viable.

It's very hard for me to know what to say about fusion right now, inasmuch as it is not yet scientifically feasible. I just can't understand how so many people are able to predict so much about something that still isn't scientifically possible.

Fusion power is speculative and experimental. I think it is reckless to assume that the fusion problem will be cracked, but I'm happy to estimate how much power fusion could deliver, if the problems are cracked.

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.

I will say this, - though: If it is true that fusion will put unlimited amounts of energy into our hands, then I'm worried. Our record on this score is extremely poor.

I would like nuclear fusion to become a practical power source. It would provide an inexhaustible supply of energy, without pollution or global warming.

I really have become convinced that nuclear fusion is our energy future. It's so powerful. I mean, it is the power of the stars. If we could bring that down to the laboratory and to the power plant on Earth, that would be an incredible thing.

We can be just as safe with a smaller, more efficient nuclear arsenal at less cost.

We have never succeeded in slowing down our nuclear fusion reactors.

Well, it's very dangerous to project, but it's clear that the existing technology has some more years to go.