Re: Watch "Can Many Worlds Solve The Measurement Problem?" on YouTube

2023-12-06 Thread Jason Resch
On Wed, Dec 6, 2023, 5:40 PM Tomas Pales  wrote:

> A split into a finite number of worlds would solve the measure problem but
> where did he get his finite number?


My guess is he is using something like the number of distinguishable
quantum states given by the Bekenstein bound, or the total number of
degrees of freedom for the 10^23 molecules of gas in a cubic meter of air.


And why are physicists like Tegmark and Greene still talking about the
> measure problem if the number is finite?
>

I am not sure, perhaps they are considering it as infinite across a
spatially infinite universe. But we only have access to a finite portion of
the universe, so perhaps it is fine to ignore the rest of it (infinite
space and universes) at least as it may relate to the measure problem.

Jason


> On Wednesday, December 6, 2023 at 2:52:31 PM UTC+1 Jason Resch wrote:
>
>>
>>
>> On Wed, Dec 6, 2023, 7:24 AM Tomas Pales  wrote:
>>
>>> But isn't there a problem when the number of worlds after the split is
>>> infinite? In popular science books they always write that if the number of
>>> worlds is infinite then there are different ways of counting the
>>> probabilities and so we can arrive at different probabilities than those
>>> given by the Born rule. They call it the "measure problem" (not measurement
>>> problem).
>>>
>>
>>
>> Here, at about 6 minutes and 30 seconds in, Deutsch is asked how many
>> universes are there. He gives a finite number:
>>
>> https://youtu.be/Kj2lxDf9R3Y
>>
>> Jason
>>
>>
>>> On Wednesday, December 6, 2023 at 7:28:54 AM UTC+1 Jason Resch wrote:
>>>
 https://youtu.be/BU8Lg_R2DL0

 This is timely.

 Jason

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Re: Watch "Can Many Worlds Solve The Measurement Problem?" on YouTube

2023-12-06 Thread Tomas Pales
A split into a finite number of worlds would solve the measure problem but 
where did he get his finite number? And why are physicists like Tegmark and 
Greene still talking about the measure problem if the number is finite?

On Wednesday, December 6, 2023 at 2:52:31 PM UTC+1 Jason Resch wrote:

>
>
> On Wed, Dec 6, 2023, 7:24 AM Tomas Pales  wrote:
>
>> But isn't there a problem when the number of worlds after the split is 
>> infinite? In popular science books they always write that if the number of 
>> worlds is infinite then there are different ways of counting the 
>> probabilities and so we can arrive at different probabilities than those 
>> given by the Born rule. They call it the "measure problem" (not measurement 
>> problem).
>>
>
>
> Here, at about 6 minutes and 30 seconds in, Deutsch is asked how many 
> universes are there. He gives a finite number:
>
> https://youtu.be/Kj2lxDf9R3Y
>
> Jason 
>
>
>> On Wednesday, December 6, 2023 at 7:28:54 AM UTC+1 Jason Resch wrote:
>>
>>> https://youtu.be/BU8Lg_R2DL0
>>>
>>> This is timely.
>>>
>>> Jason 
>>>
>> -- 
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>>  
>> 
>> .
>>
>

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Re: Watch "Can Many Worlds Solve The Measurement Problem?" on YouTube

2023-12-06 Thread Jason Resch
On Wed, Dec 6, 2023, 7:24 AM Tomas Pales  wrote:

> But isn't there a problem when the number of worlds after the split is
> infinite? In popular science books they always write that if the number of
> worlds is infinite then there are different ways of counting the
> probabilities and so we can arrive at different probabilities than those
> given by the Born rule. They call it the "measure problem" (not measurement
> problem).
>


Here, at about 6 minutes and 30 seconds in, Deutsch is asked how many
universes are there. He gives a finite number:

https://youtu.be/Kj2lxDf9R3Y

Jason


> On Wednesday, December 6, 2023 at 7:28:54 AM UTC+1 Jason Resch wrote:
>
>> https://youtu.be/BU8Lg_R2DL0
>>
>> This is timely.
>>
>> Jason
>>
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> 
> .
>

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Re: Watch "Can Many Worlds Solve The Measurement Problem?" on YouTube

2023-12-06 Thread Tomas Pales
But isn't there a problem when the number of worlds after the split is 
infinite? In popular science books they always write that if the number of 
worlds is infinite then there are different ways of counting the 
probabilities and so we can arrive at different probabilities than those 
given by the Born rule. They call it the "measure problem" (not measurement 
problem).

On Wednesday, December 6, 2023 at 7:28:54 AM UTC+1 Jason Resch wrote:

> https://youtu.be/BU8Lg_R2DL0
>
> This is timely.
>
> Jason 
>

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