Maybe you should not only read the thread but watch the movie AGAIN. Or at least watch the clip at the very beginning where Cutter, who had NOTHING to gain from this aside from purchasing the machine himself telling the Broker that it was REAL. I JUST DO NOT UNDERSTAND HOW PEOPLE IGNORE THAT PART OF THE FILM.
ive seen the film. you have to be a moron to think the machine worked.
and make you have to watch that movie again over and over. Directed by Christopher Nolan. He made The Prestige and Memento 

myself included if you wish to think that way
but stop making the obivious things more complicated than it is