What I don't undertand it how you can turn your head left, let's say,
without losing sight of the screen, which is still in front of you?
They must somehow make the screen movements disproportionately larger,
to prevent this problem, right? But then I would think that it would
be very disconcerting, moving a little yet moving a LOT?

Actually, it's quite surprisingly natural. I have never used the device
in question, but I did try moving my head a little while manually
pushing the buttons to change views. It's amazing what a difference
that little head movement makes in realism. When I just change views,
I'm seeing the side window in front of me. But when I move my head a
little at the same time I push the button, I'm looking out the side,
even though the screen is still pretty much in front of me.

Try it.

Jose
--
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