Originally Posted by
Capuchin
But showing that there is a phenomenon that is not currently understood is fairly easy.
For example, showing a green-red colourblind person that some people have the ability to distinguish between green and red is very easy, although showing the actual difference is very hard.
Despite this, such phenomena are very rarely found. (If ever, i'm wondering if some examples that i can think of really count).
Anyway, a contraolled test to show whether the phenomenon is real or not should be very easy.