Ah, interesting. I suppose that's a lot like what psychologists or psychics try and do, convince you to prompt them without you noticing. Reminds me a bit of a

Ah, interesting. I suppose that's a lot like what psychologists or psychics try and do, convince you to prompt them without you noticing. Reminds me a bit of an old demo where you're trying to measure a certain signal shape in the presence of heavy noise. You get shown waveforms and decide if it looks like there might be a signal present or not, and the ones you approve get averaged to pull the signal out. Very quickly, even if all you are shown is zero mean gaussian noise, the average of what you OK'd starts to look like the waveform you're looking for.