I did NOT say science knows it all. However, my analogy is perfect. Science DOES know with 100% (realistic) certainty that you cannot mix sodium bicarbonate together with sodium chloride and produce gold. Likewise, science DOES know that what this guy is claiming is complete bullshit. The only reason he's continued to manage to scam people out of money is that people like you only "doubt it." Our understanding of subatomic physics is far beyond the point where something like this, especially given his device, is even remotely possible. I could understand if what he was claiming was on the cutting edge of our knowledge, but it's not.
"There might be Nigerian princes. If he would have offered you a mere $100,000, I might give him some credit. But he was able to offer you too much money right away from the start. I still doubt it." Hmmmm, I didn't intend it, but there's another parallel in this past sentence - there ARE people out there who give money to the "Nigerian prince" just like there are other gullible fools who fall for Rossi's invention.