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Re: [Phys-l] Reality versus models of realty




In a message dated 12/16/2010 8:48:52 PM Eastern Standard Time,
dvnsarma@gmail.com writes:

On Thu, Dec 16, 2010 at 7:08 AM, ludwik kowalski <
kowalskil@mail.montclair.edu> wrote:


I would say that real is what would exist if all humans disappeared.
Planets, for example, are real.
Ludwik
=========

Who knows what would be there?
Right now we are not sure of the nature of the world around us.
Our knowledge of the world is through the filters of our senses.
Thus we do not know what actually is out there.
QM is reaching the conclusion reality does not exist when
we are not observing it.
Very close to the advaitic school "by looking we create the world".
If you remove observer(s), the question of existence of reality
in their absence, becomes unverifiable and meaningless.

regards,
Sarma.







I don't think QT informs us that reality doesn't exist unless observed.
You're right all of reality is a mental construct, but all this means as I see
it, that we must perhaps be instrumentalists in our philosophy, not
idealists. We know that the classical world emerges from the underlying Quantum
reality via the process of Decoherence which is very well supported
experimentally. The mind collapses the wave function idea is not viable.


Bob Zannelli