[ExI] Subject: Boltzmann brains

[Giulio Prisco]

This essay that I wrote a couple of years ago seems relevant to this discussion:
https://turingchurch.net/does-god-emerge-from-boltzmann-brains-in-the-fabric-of-reality-7583c3dac485

On Tue, May 5, 2020 at 8:12 AM Rafal Smigrodzki via extropy-chat
<extropy-chat at lists.extropy.org> wrote:
>
>
>
> On Sun, May 3, 2020 at 10:30 AM Adrian Tymes via extropy-chat <extropy-chat at lists.extropy.org> wrote:
>>
>>
>> In this case, "brains just randomly forming and miserably and almost immediately expiring somewhere in the universe should outnumber galaxies randomly forming in that universe" seems to be the error.  Specifically, ignoring the different time scales needed for construction (and its effects on the likelihood of random assembly) between extremely short-lived entities that would need near-instant formation - brains forming and almost immediately expiring - versus extremely long lived entities that can take much longer to assemble - galaxies.
>
>
> ### Indeed, biological brains are created by physical law, while Boltzmann brains are created in a physicist's imagination.
>
> Wolfram's mathematico-physical process creates expanses of space with different properties, in the right areas of space galaxies form because the local physical laws make it happen, then in parts of galaxies planets evolve life, because the local chemical conditions make it happen, and then some lifeforms evolve brains, because the local biological conditions (still a consequence of the underlying mathematico-physical process) make it so.
>
> The Boltzmann brain paradox only exists because some physicists disregarded the lawful nature of our world and ran with simplistic ideas about randomness.
>
> Rafal
> _______________________________________________
> extropy-chat mailing list
> extropy-chat at lists.extropy.org
> http://lists.extropy.org/mailman/listinfo.cgi/extropy-chat