Perceive Your Blind Spot
This video should help you to do the right thing.
1. Close your left eye. You will partially see your nose, that’s the blob on the lower left. You will, of course, not actually see your eyebrows “from within”, that’s artistic freedom from Ernst Mach, on whose beautiful drawing the present demonstration is based.
2. Fully stretch out your left arm, make a partial fist, index finger pointing straight up, thumb pointing straight to the right. Fixate the top of your index finger (indicated by the bull’s eye).
3. Fully stretch out your right arm, shape like for the left hand. Let your thumbs just touch, and wiggle your right index finger a little (arrows).
4. Keep your gaze on the top of the left index finger, but with your “inner eye” observe the top of the right index finger – don’t directly look at it, keep your gaze steadily on the left index finger.
The basic observation: Your right index finger should seem to vanish at its top.
#classic
@WhatDoYouSea
