reworded, I thought which slit was a proxy for revealing particle-arity, but now i see that this is not correct
You need to know which slit, to know where to render the particle in the non-interference pattern
Yes, I'd say it this way:
It gets rendered as a particle due to you - even only potentially - knowing which way it went.
So, me writing my trail of thoughts down instead of just the result is a good thing in the end.
If you look back you'll see that I added: ... and also the predicted outcome ...
to the "OTOH statement" you quoted.
So I'll try a hypothetical guys,just assume it's all virtual.
Isn't that what Tom's TOE says?
Isn't that what the theory on QM says, too?
If there is data from which the "which path" information could be deduced then particle-behaviour would be the observed result.
They thought that the (physical) act of (physical) measurement itself disturbs the experiment and alters the result.
But there is the case with the detectors still on, but not recording - resulting in interference too.
You look, and there it is. You don't, nothing needs to be there.
You can't even know whether there is something while you are not looking for that something.
But everytime you do look, something is there - out of the probable possibilities.
It is not the act of measurement as a physical act.
You can refine it as much as you want - in order to "not disturb" some state.
It is the availability of information due to you requesting it, by "measuring" it.
The DCQE is showing this - no physical influence due to measurement in this particular experiment.
It is information, algorithms, data.
That is what we can see - whether we understand or not.
We can't really get to terms with it while still having the proposition of objective reality with cause and effect as we know it.
... You own a master copy of a recording.You haven't listened but it's data is available to you if you want to listen.
You copy it to a CD.
You remove tracks from the master copy or destroy it.
When you listen to your CD the tracks are gone.
Can this happen? No, because ....
This is not equivalent to what you said before and with what you contrast it.
How do you know what is on the master-copy if you have not looked or listened to eighter it or the CD created from it?
You can't remove individual tracks without knowing they where there.
You can destroy the whole master - but then you never even knew if and what was on it - or on the CD.
You would not even know that tracks where missing.
If you still feel you miss a track on your CD, it must have been missing from the master it was created from.
happen in this case!
...well, nothing would actually "happen", because you would never even know whether it did or not...
Something like it did "happen", kinda ... Toms interview with Sceptico ;)as if it never happened ...