My hypotheses regarding this being a fraud (or other than it seems) are getting less tenable. The number of people involved and the scope of it are becoming an issue, for example. A scammer has only a limited opportunity to make money, and the fewer the associates to divvy up the $$ the better, so as more working associates (with legitimate backgrounds) turn up as part of this, the potential for it being a scam diminishes.
Not to mention the report showing observers being able to pick up and inspect the E-cat, check for electromagnetic radiation, etc., that I posted yesterday.
If it's a fraud, no one has been able to explain how they are doing it, nor has there been any discovery of such over four months of demonstrations. There are a number of parties involved, and Rossi is not asking for money (or giving 'opportunities' for licensing, etc.) and appears to be content to let the large-scale demonstration convince people.
I'm left with a secondary/circumstantial points (the 'natural' copper isotope ratio in the reaction product sample, the Petroldragon and gold importation past, and a lot of you-should-have-done-it-this-way carping by skeptics about technical points of the past demos).
As Sherlock Holmes would say, once all other options are ruled out, the truth remains. My assessment of the E-cat is starting to raise above the 50% likelihood mark... the world's going to change if so.
I’m not seeing the scam, or any measurement error. I think you are simply not going to see people like Drs. Focardi, Kullander, and Essen go public in the way they have unless they are convinced that Rossi is being straight with them and that they are seeing something very unusual and interesting.