On Wednesday, November 20, 2019 at 3:00:25 PM UTC-6, Brent wrote:
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> On 11/20/2019 11:49 AM, Philip Thrift wrote:
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> On Wednesday, November 20, 2019 at 12:59:32 PM UTC-6, Brent wrote:
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>> On 11/19/2019 11:41 PM, Philip Thrift wrote:
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>> On Tuesday, November 19, 2019 at 3:59:47 PM UTC-6, Brent wrote:
>>>
>>>
>>>
>>> On 11/19/2019 1:43 PM, Philip Thrift wrote:
>>>
>>>
>>> A diffraction pattern emerges in video recordings of single-photon
>>> double-slit experiments whether anyone sees the video or not. what changes
>>> is the image on the video frame-by-frame. If you take a video of a an arrow
>>> shot from a bow, it follows a parabolic curve, and what changes is its
>>> position frame-by-frame.
>>>
>>>
>>> So when your path integral formulation predicts various probabilities
>>> for position of photon absorptions by the video camera nothing has changed
>>> when positions are actualized in the recording. All the same probabilities
>>> obtain. Which is the MWI view.
>>>
>>> Brent
>>>
>>
>>
>>
>> In the cases of *Quantum Measure Theory* (Rafael Sorkin), *Real Path
>> Quantum Theory* (Adrain Kent), or -- in another type of formulation --
>> *Cellular
>> Automaton Interpretation* [of Quantum Mechanics] (Gerard 't Hooft), I
>> don't see what "change" means in your terms.
>>
>>
>> Those methods assign probabilities (measures) to specific possible
>> outcomes (measurements). When one is observed, it is used as an initial
>> condition for further predictions. If it's not observed then further
>> predictions are conditioned on all the possible outcomes. That's a change.
>>
>> Brent
>>
>
>
> Except in the theories -- QMT, RPQT -- themselves, nothing is observed (or
> needs to be observed), because *there are no observers* ("alternative to
> the textbook formalism of state-vectors and external *observers*").t
>
>
> And that's why they fail to predict observations. But they do assign
> probabilities to specific events and they condition those on prior events
> or not.
>
> Brent
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>
They all make predictions.
*The Schrödinger equation is not the only way to study quantum mechanical
systems and*
* make predictions.*
*The other formulations of quantum mechanics include matrix mechanics,
introduced by Werner Heisenberg, and the path integral formulation*,
developed chiefly by Richard Feynman. Paul Dirac incorporated matrix
mechanics and the Schrödinger equation into a single formulation. *
** From path integral formulation to Schrödinger's equation*
https://en.wikipedia.org/wiki/Relation_between_Schr%C3%B6dinger%27s_equation_and_the_path_integral_formulation_of_quantum_mechanics#From_path_integral_formulation_to_Schr%C3%B6dinger's_equation
@philipthrift
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