In a small fraction of the cases when people have investigated they have determined it was faked doesn't mean that that category of thing doesn't exist or that that's or even that like the method of acquiring what you consider to be evidence is faulty in this case. That just seems overly dogmatic and i think that if it were true that supernatural entities had any sort of interaction with this world isn't it weird that not once anybody has been able to demonstrate that? "Not a single time all we have is testimony," he says.