One thing that has made a big comeback just recently is this business of speaking with the dead. To my innocent mind, 'dead' implies incapable of communicating.

I can go into a lab and fool the rear ends off any group of scientists.

However, I believe that it would be difficult to have legitimate scientists agree to participate.

No evidence against a firmly-held belief, no matter how good or abundant it may be, will sway the true believer.

The problem with experiments has always been that human beings make the decisions on whether or not the animals have benefitted from the treatment.

The conjuror or con man is a very good provider of information. He supplies lots of data, by inference or direct statement, but it's false data. Scientists aren't used to that scenario. An electron or a galaxy is not capricious, nor deceptive; but a human can be either or both.

A quick example of that is a woman who said she'd been healed of throat cancer where the faith healer admitted he touched her on the forehead.