Dear Tito,

In your recent "Are classical probabilities instances of quantum amplitudes?",
http://xxx.lanl.gov/abs/quant-ph/0206147 ,

you wrote: "It may be noted that superpositions which are arguably macroscopic have been detected in a series of recent experiments."

Do you remember my numerous postings at Q-Mind forum during the past three years? What could be more 'macroscopic' than your brain? You and nearly 1000 participants of this forum were able to verify experimentally macroscopic superpositions. All you need is a brain, like the one above your neck.

Think of a Platonic idea (a.k.a. Holon) which can be "measured" with three (or more, if you wish) sayings:

1. Beggars can't be choosers.
2. You can't make a silk purse out of a pig's ear.
3. You cut your coat according to the cloth.

Or think of a Platonic idea which can be "measured" with two states only, 'vase' and 'two faces',

http://members.aon.at/chakalov/readme1st.html#superposition

You keep in your BRAIN a holistic state of a vase-AND-two-faces, don't you? Hence you can verify your conjecture in quant-ph/0206147 with your brain.

This special brain state is just UNspeakable, for you can explicate it with either 'vase' or 'two faces'. But it won't crash/collapse. No way.

BTW if you manage to control these macroscopic superpositions, you can even walk on fire,

http://www.firewalking.com/firewalking4.gif

Think of 'damp moss', that's all:-)

See also my recent talk in London on May 30th,

http://members.aon.at/chakalov/May_30.zip

You can read this email also at

http://members.aon.at/chakalov/Vecchi.html
 

Take care,

Dimi
http://members.aon.at/chakalov
http://members.aon.at/chakalov/dimi.html
--
Dead matter makes quantum jumps; the living-and-quantum matter is smarter.

=====

From: Dimi Chakalov <dimi@chakalov.net>
To: Anthony J Leggett <aleggett@uiuc.edu>
Subject: Transit times and cat states
Date: Mon, 28 Nov 2005 13:59:53 +0200

Dear Professor Leggett,

Regarding Eq. 2.6 and the concept of Macrorealism [Ref. 1], I wonder if you know F. Lindner et al., quant-ph/0503165 v2,
http://arxiv.org/abs/quant-ph/0503165

My speculations can be read at
http://www.God-does-not-play-dice.net/Horwitz.html
http://www.God-does-not-play-dice.net/Vecchi.html

Kindest regards,

Dimi Chakalov
--
[Ref. 1] A.J. Leggett, Testing the limits of quantum mechanics: motivation, state of play, prospects, J. Phys. CM 14, R415-451 (2002).
http://www.iop.org/EJ/abstract/0953-8984/14/15/201

--
"(1) Macrorealism per se. A macroscopic object which has available to it two or more macroscopically distinct states is at any given time(footnote 38) in a definite one of those states."
--
Footnote 38: "Except for possible short 'transit times' which can be allowed for in the derivation of the inequality below (see [15])."