Follow these instructions:
- Sit about arms length away from your computer screen.
- Without closing it or pressing on it, completely cover your left eye using your left hand.
- With your right eye, stare directly at the
 above.
You will notice the  to the right.
- Slowly move closer to the screen, continuing to stare at the .
- At about 14-16 inches from the screen, the should disappear completely,
because it has disappeared into the blind spot of your right eye.
- As you continue staring at the , keep moving forward a few more inches
and as you will notice, the will come back into view.
- Try the same thing again, except this time with your right eye covered with your right hand stare at the
with your left eye, move in closer, and the will disappear.
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