"Plank Experiment on consciousness"

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understand what you see. You will then come to the conclusion that what I tell you is not an idle theory, offspring of a sick brain, but the simple expression of a fact. Suppose that we place on the ground a plank 30 feet long by one foot wide. It is evident that everybody will be capable of going from one end to the other of this plank, without stepping over the edge, but now change the conditions of the experiment, and imagine this plank placed at the height of the towers of a cathedral. Who then will be capable of advancing even a few feet along this