javisot's latest activity
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Jjavisot reacted to PeterDonis's post in the thread B Is there a white hole inside every black hole? with
Like.
It is implicitly saying that the McVittie solution is globally well-defined--that it has a maximal analytic extension whose Penrose... -
Jjavisot reacted to Sambuco's post in the thread A Understanding Barandes' microscopic theory of causality with Like.
Maybe I'm misunderstanding something, but after a division event isn't the definition ##p(z_i\omega_i, t | z_j\omega_j,t') =...
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Jjavisot replied to the thread B Is there a white hole inside every black hole?.What "black to white transition" proposes is that the final conditions of a common evaporating black hole (not at all exotic in...
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Jjavisot reacted to Ibix's post in the thread B Is there a white hole inside every black hole? with Like.
I was here referring to the time-reverse of an ultra-compact stellar remnant that isn't a true black hole, but is functionally...
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Jjavisot replied to the thread B Is there a white hole inside every black hole?.Exactly, the paper concludes that black holes are not dark energy, it does so as indicated in the title by adding black holes in FLRW...
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Jjavisot reacted to PeterDonis's post in the thread B Is there a white hole inside every black hole? with Like.
That's correct. More precisely, in an FLRW universe with zero cosmological constant, it's correct. In fact I'm not even sure if there is...
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Jjavisot reacted to Ibix's post in the thread B Is there a white hole inside every black hole? with Like.
Yes - you can cut a spherical cavity into an FLRW universe and fill the hole with part of a Schwarzschild universe (i.e. the McVitie...
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Jjavisot reacted to Ibix's post in the thread B Is there a white hole inside every black hole? with Like.
I'm not sure you can even have true black holes in an FLRW universe, because a black hole is a region of spacetime that can't signal to...
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Jjavisot replied to the thread B Is there a white hole inside every black hole?.https://arxiv.org/pdf/2308.07374, "Black holes embedded in FLRW cosmologies"
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Jjavisot reacted to Ibix's post in the thread B Is there a white hole inside every black hole? with Like.
Maybe. Classical ones certainly can't form.
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Jjavisot replied to the thread B Is there a white hole inside every black hole?.A white hole is part of the maximally extended Schwarzschild solution in Kruskal coordinates. The consensus is that they are not...
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Jjavisot reacted to PeterDonis's post in the thread A Understanding Barandes' microscopic theory of causality with Like.
But it can't be just that, if your other criticism is valid. If it's just statistical conditioning, then there is no actual collapse...
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Jjavisot reacted to Sambuco's post in the thread A Understanding Barandes' microscopic theory of causality with Like.
I'm not objecting to any of this, that's not my point. I'm not referring to a case with imperfect/unsharp division event, but rather to...
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Jjavisot reacted to PeterDonis's post in the thread A Understanding Barandes' microscopic theory of causality with Like.
By "local" here is meant "free of action-at-a-distance", which, if you unpack further based on what's said in section 9 of the paper...
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Jjavisot reacted to jedishrfu's post in the thread Complexity Physics and Tipping Points in Chess with Like.
I imagine in the future, we will be taught by machines using active learning to accelerate our progress in education. Competitions...