On Wednesday, September 25, 2019 at 7:28:02 AM UTC-5, Alan Grayson wrote:
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>
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> On Wednesday, September 25, 2019 at 4:53:04 AM UTC-6, Philip Thrift wrote:
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>> On Wednesday, September 25, 2019 at 5:33:25 AM UTC-5, Alan Grayson wrote:
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>>> On Wednesday, September 25, 2019 at 12:16:57 AM UTC-6, Philip Thrift
>>> wrote:
>>>>
>>>>
>>>> Many Worlds leads Sean Carroll to speculate about the morality of
>>>> duplicated selves when they bach off into other worlds.
>>>>
>>>> Sean Carroll
>>>> @seanmcarroll
>>>> https://twitter.com/seanmcarroll/status/1176617631408775168
>>>>
>>>> *Congressional votes do not *cause* the wave function to branch, but
>>>> unlikely quantum events can bring into existence branches where
>>>> classically
>>>> unlikely outcomes have occurred. A nucleus might decay in the right
>>>> Representative's brain at just the right time, etc.*
>>>>
>>>> He asks:
>>>>
>>>> "If You Existed in Multiple Universes, How Would You Act In This One?"
>>>>
>>>>
>>>>
>>>> https://lithub.com/if-you-existed-in-multiple-universes-how-would-you-act-in-this-one/
>>>> (From Something Deeply Hidden: Quantum Worlds and the Emergence of
>>>> Spacetime by Sean Carroll)
>>>>
>>>>
>>>> But he gives away the game here:
>>>>
>>>> "To each individual on some branch of the wave function, life goes on
>>>> just as if they lived in a single world with truly stochastic quantum
>>>> events."
>>>>
>>>> Maybe there's a Sean Carroll branch that loves stochasticity.
>>>>
>>>
>>> *How do you distinguish stochastic probability from quantum probability?
>>> AG *
>>>
>>>>
>>>> Many Worlds (a religion, or quasi-religion, but not science) is
>>>> fundamentally an anti-probabilities superstition. And anti-materialist as
>>>> well. Those who think we are pure information - platotonist bits - have no
>>>> problem with the idea of multiple copies of things here and now being
>>>> made,
>>>> because there is no new material needed.
>>>>
>>>> (The religious aspect of Many Worlds has been made apparent with the
>>>> promotion - Carroll's own tweets, for example - of the book.)
>>>>
>>>> @philipthrift
>>>>
>>>>
>>>>
>>
>> There is quantum probability, which is advertised to come from quantum
>> chip random number generators
>>
>>
>> https://www.idquantique.com/random-number-generation/products/quantis-random-number-generator/
>>
>> (to be concrete about it), where the claim is that the series of 0s and
>> 1s one gets from then is true randomness (coming from a quantum source).
>>
>
> *This is an operational definition of creating a (quantum) random series
> of 0s and 1s. But I think there's a theoretically distinction between
> quantum randomness and the (classical) stochastic random process, and it
> involves the concept of interference. AG *
>
>>
>> Now in Sean Carroll's MW presentation, the computer with one of those
>> boards in it would duplicate and there would be a 0 branch and a 1 branch
>> with each 0 or 1 generated.
>>
>> So at the end of seeing 01001110 on your screen, there would be 2^8
>> computers (and yous) in that many worlds.
>>
>> "Stochastic" (Greek word origin) is just another (cooler, some think) for
>> "random". In a probability theory track at university: random processes,
>> stochastic processes, same damn things.
>>
>>
>> Assuming there is just one world, there is just one computer at the end
>> of seeing 01001110 and no other computers in other worlds.
>>
>> @philipthrift
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>>
>>
>
Stochastic processes and stochastic deferential equations (SDEs) can ne
applied to phenomena whether they are truly random or nor. SDEs are
applied in finance, for example,
But Sean is talking about quantum randomness.
Of course quantum stochastic processes have a different probability
definition:
https://www.encyclopediaofmath.org/index.php/Quantum_stochastic_processes
classical: probabilities of disjoint events add
quantum: amplitudes of disjoint events add, the amplitude of an event being
a complex number whose square is the probability of the event.
@philipthrift
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