In article ,
Mxsmanic wrote:

-b- writes:

Sensorial clues supported by visual clues are quite different from the
former
without the latter, as is widely recognized in the pertinent literature.
Close
your eyes in VMC, and you're not really in VMC anymoe, are you. . .

If physical sensations were useful, you'd be able to fly with your eyes
closed. The fact that you cannot demonstrates that they are not useful.

What a colossally stupid thing to say.

"If the sense of balance were useful, you'd be able to walk around
safely with your eyes closed. The fact that you cannot demonstrates that
it is not useful."

There's a big difference between useful and sufficient.

--
Mike Ash
Radio Free Earth
Broadcasting from our climate-controlled studios deep inside the Moon