Cold fusion is a buzzword often tossed around in popular media without much in terms of real context. The idea of achieving cold fusion is one that has eluded scientists for decades. But the efficacy of such a project and its origins have always been hazy in the scientific community.
Often, scientists don’t take the notion of cold fusion seriously, and if anyone did believe in it’s potential they would be deemed mad. In theory, cold fusion is analogous to nuclear fusion in that they are both theorized to produce immense amounts of renewable, clean energy. But that comparison couldn’t be further from the truth, as nuclear fusion takes place in the 10 million kelvins (50 million °F) of a star’s core while cold fusion is expected occur at room temperature.
So is cold fusion possible?
In short, Bill Nye says no, but not completely.
Referencing past attempts, he juxtaposes the claims with the evidence, essentially debunking myths that push the concept of cold fusion. However, he does note that certain companies like Lockheed Martin are claiming that cold fusion will be possible in our lifetime, and while he is skeptical of the assertion–he isn’t saying it’s impossible.