[cloverich]

This isnt quite right. For one 2) is not required at all! I regularly get sick to the point of vomiting, no screen required. It can even happen while i driving! Looking at a screen with this on helps - looking at a screen can now reduce my motion sickness. neat.

4) - it is not motion but acceleration of all kinds. When the plane takes off, the dots move in reverse. When the train stops (no more motion), the dots continue moving for several seconds. Which is to say, its a little more complicated to get it just right than it would seem!