Is the experiment described in the video non-existent? For the longest time I've always thought the hidden variable theory was still viable - but if the act of pressing a record button can change the outcome of the experiment that would really hurt my head. I don't buy any of the intelligent...
About mid-way through this video it is explained that the doubleslit experiment was conducted with detectors turned on but simply not recording data, the result of which was an interference pattern. The act of turning the recording component on caused the interference pattern to be destroyed...