[Wonder Warthog]

"Even if it's real the material that seems to get the best results, palladium, is rare and expensive. Probably good for exotic energy needs under the best of circumstances but not a panacea. I think the best we can hope for is the opening of a new field of physics research. I would be happy with that."

It's not all THAT rare, and is completely re-usable in the purported CF process---BUT---there is some indication that similar things happen in titanium and/or palladium-coated titanium. Titanium IS both ubiquitous and cheap (titanium oxide is a major constituent of house paint).

[Paladin2]

" It's not all THAT rare"

In fact it's in use daily quite close to nealy all of us as we drive around (Used as a catalyst for vehicle emission reduction in (at least) US and Canadian vehicles - for decades).