nomadreid's latest activity
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nomadreid replied to the thread Undergrad FLRW metric challenged, Einstein-Euler equations as alternative?.Thank you; I have downloaded it from arXiv. -
nomadreid reacted to Roberto Pavani's post in the thread Undergrad FLRW metric challenged, Einstein-Euler equations as alternative? with
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No, I was thinking of Buchert's original paper (gr-qc/9906015). I might be oversimplifying things though, I'm not an expert on this. -
nomadreid replied to the thread Undergrad FLRW metric challenged, Einstein-Euler equations as alternative?.Are you referring to the following? https://inspirehep.net/literature/803660
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nomadreid reacted to Matterwave's post in the thread Undergrad FLRW metric challenged, Einstein-Euler equations as alternative? with Like.
"If one gives up the FLRW metric, then one perhaps does not need the assumption of isotropy." I haven't read the paper but would...
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nomadreid reacted to PeterDonis's post in the thread Undergrad FLRW metric challenged, Einstein-Euler equations as alternative? with Like.
Yes, that would be the case. The general idea, that deviations from the idealized FLRW solutions might be enough to account for...
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nomadreid posted the thread Undergrad FLRW metric challenged, Einstein-Euler equations as alternative? in Beyond the Standard Models.The question concerns the article "The instability of critical and underdense Friedmann spacetimes at the Big Bang as an alternative to...
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nomadreid reacted to SSequence's post in the thread Undergrad Does Artemov's "S-consistency" really revive the Hilbert Program? with Like.
Yeah well if we just want to look at it in a very high level way, it seems that "perhaps" it can be summarized into what we can call...
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nomadreid replied to the thread Undergrad Does Artemov's "S-consistency" really revive the Hilbert Program?.Thanks, SSequence. This was my impression as well; that was of course the whole point of Gödel's inclusion of omega consistency in his...
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nomadreid replied to the thread Undergrad Does Artemov's "S-consistency" really revive the Hilbert Program?.Thank you for the analysis, SSequence. This can help me in attempting to make sense of Artemov's arguments. (Your analysis also confirms...
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nomadreid reacted to SSequence's post in the thread Undergrad Does Artemov's "S-consistency" really revive the Hilbert Program? with Like.
So having spent some time (looking at various resources too), this is that partial understanding of it that I can manage. Note that this...
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nomadreid posted the thread Undergrad Does Artemov's "S-consistency" really revive the Hilbert Program? in Set Theory, Logic, Probability, Statistics.I have come across several preprints by Prof. Sergei Artemov, for example https://arxiv.org/abs/2508.20346...
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nomadreid reacted to PeterDonis's post in the thread Undergrad About wavefunction collapse and explaining single outcomes in different interpretations with Like.
There is no such thing. In "standard quantum mechanics", time evolution is only predicted by the Schrodinger equation in between...
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nomadreid reacted to olgerm's post in the thread Undergrad About wavefunction collapse and explaining single outcomes in different interpretations with Like.
I modified my post now and tried to correct mistakes. you can tell me if it is correct now.
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nomadreid reacted to PeterDonis's post in the thread Undergrad About wavefunction collapse and explaining single outcomes in different interpretations with Like.
No, this is not correct. An interpretation that claims single outcomes (which at least some versions of "Copenhagen" do--that term is...
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nomadreid reacted to olgerm's post in the thread Undergrad About wavefunction collapse and explaining single outcomes in different interpretations with Like.
In standard quantum mechanics (without objective wavefunction collapses) were time-evolution of wavefunction is predicted only by...