One cannot have 1p if there is no observer.

[Roger Clough], []
"Forever is a long time, especially near the end." -Woody Allen

----- Receiving the following content ----- 
From: meekerdb 
Receiver: everything-list 
Time: 2012-12-01, 18:00:16
Subject: Re: Against Mechanism

On 12/1/2012 12:52 PM, John Clark wrote: 
Again there is nothing special about an observer in this, the same thing would 
happen if nobody looked at the film, or even if you used a brick wall instead 
of film, because the important thing is not that the photon makes a record 
(whatever that is) but simply that it is destroyed.

> But you can do the experiment with electrons too, and the electrons are not 
> destroyed.

Good point. If electrons are used in the two-split experiment a brick wall 
probably wouldn't do, you'd need a metal wall. Brick is a pretty good insulator 
so you'd end up with 2 small negatively charged spots on the wall in slightly 
different places; 

How would you get two charged spots?  Would each have charge -e/2?  The 
experiment was originally done with photographic film, so that each electron 
ionized a silver halide atom resulting in a silver spot on the film.  Now it's 
usually down is some kind of detector that amplifies the effect of each 
electron.  Neither one has anything to do with destroying the electron.

the walls would not be the same and so the 2 universes would not be the same 
and so they would not merge. However if it was a metal wall the electrons would 
just join the general sea of free electrons in the metal and there is no way 
even in theory to tell one electron from another. So the walls would have the 
same charge and mass. 

But in an entangled electron pair experiment (EPR type) detecting the path of 
one electron destroys the interference pattern on the other leg.  But also just 
absorbing one electron destroys the interference on the other leg.  To maintain 
the interference you have to absorb the electron at the focal point of a lens 
so that you not only don't detect the which-way information, you erase it.


You received this message because you are subscribed to the Google Groups 
"Everything List" group.
To post to this group, send email to
To unsubscribe from this group, send email to
For more options, visit this group at

Reply via email to