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New Evidence Against the Standard Model of Cosmology

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Re: New Evidence Against the Standard Model of Cosmology

#91

Any time dissenting physics/astronomy opinions show up on here, it's always Sabine Hossenfelder. Is she a lone wolf or the face of a larger community?

I have another error I'd like to discuss with her, but she charges to speak with one of her people. Sorry, I'm not paying for that :-)

Re: New Evidence Against the Standard Model of Cosmology

#92
post #35
post #16

Earlier quoted context omitted.

That would be true if young scientists wouldn’t continuously make successful predictions based on cosmological principle among other observable effects of the general relativity and standard model. Make observable prediction, coherent thesis, then we’ll talk. Of course our models are not perfect, but it is best we have. Physics so far never dealt in “fundamental truths”, just good enough models. So far, this is best…

I'd argue that Einstein in particular cared a lot about "fundamental truths". Not everyone can be Einstein, but I'm glad some people care about asking deeper questions.

He cared about fundamental truths, but he didn’t think we had them.

“ all our science, measured against reality, is primitive and childlike — and yet it is the most precious thing we have.”

The best we can ever say about science is that it is useful, that’s what truth means in science, that it produces accurate predictions. Truth in any deeper sense is a matter for philosophers.

Re: New Evidence Against the Standard Model of Cosmology

#93
Perhaps our universe is the inside of a black hole and the energy for expansion is coming in from elsewhere, creating new spacetime in the center of our universe from mass/energy absorbed in the outer universe. So the cosmo constant would be proportional to mass absorbed times c^2 divided by the volume of our universe - like air inflating a balloon. Early inflation was caused by the initial absorption of mass, and it steadied down since then limited by the black hole’s singularity “throat” capacity and the available of mass/energy to absorb

The fun question is then: is the throat of the black hole that contains our universe also in our universe?

Re: New Evidence Against the Standard Model of Cosmology

#94
post #41

Earlier quoted context omitted.

They also call things polintelcom and codenames like eschelon and prism, doesnt mean it’s great practice for us Btw ESCHELON and Five Eyes coordination existed for so long and people only woke up when Snowden revealed prism

the name is echelon

[deleted]

Re: New Evidence Against the Standard Model of Cosmology

#95
post #92
post #35

Earlier quoted context omitted.

I'd argue that Einstein in particular cared a lot about "fundamental truths". Not everyone can be Einstein, but I'm glad some people care about asking deeper questions.

He cared about fundamental truths, but he didn’t think we had them. “ all our science, measured against reality, is primitive and childlike — and yet it is the most precious thing we have.” The best we can ever say about science is that it is useful, that’s what truth means in science, that it produces accurate predictions. Truth in any deeper sense is a matter for philosophers.

He didn't think we had those truths yet but I do think it's clear he thought it was the job of scientists (not only philosophers) to discover them. That's his major motivation behind the EPR paradox, general relativity, and the search for a greater theory.

If you look at what he did, he wanted to figure out what is true. General relativity answered Newton's "metaphysical" question about how gravity could act on bodies at a distance.

Re: New Evidence Against the Standard Model of Cosmology

#96
post #46

Any time dissenting physics/astronomy opinions show up on here, it's always Sabine Hossenfelder. Is she a lone wolf or the face of a larger community?

She might be right but, as of now, the evidence shows that she is probably not right. But as with everything, contrarian point of view is always popular on the internet. And we all want be in the know (have some secret knowledge) thus posts like this are popular. So if she is really right we will feel like winners - if not, who cares: it is internet.

Ya, it's so easy to point out something might not be exactly the way we thought, this position is probably the statistical more likely outcome anyways, we always refine our understanding of the universe year over year, it's unlikely we cracked the full extent of it yet. So if you just lived as a contrarian over time it be easy to always point out how we had one or more things "wrong", and make the claim you were thus right all along.

What I'd like to see more of is, alright smarty pants, what's your alternate theory and where is your superior evidence, and how is it more useful?

Re: New Evidence Against the Standard Model of Cosmology

#97
post #27

Earlier quoted context omitted.

Her music videos are also awesome :)

Thanks for the tip. Her current music video channel [0] and a playlist [1] of her older music videos on her science channel. Some of them are her own songs, others are covers. I’m currently enjoying "Cassandra (Prophet of the Dark)" [2] [0]: https://www.youtube.com/channel/UCPtRwW9i43BXbCRQa7BJaiA [1]: https://www.youtube.com/playlist?list=PLwgQsqtH9H5ckD-v9Ux3T... [2]: https://www.youtube.com/watch?v=PX0k0WfMSi0

Thank you for these, I just discovered her "Is Time Real?" video linked from it: https://www.youtube.com/watch?v=PdL8CudJTcs and it was specifically on the topic I was on about in a recent comment, where my own question was whether time is just gravity, or an artifact thereof.

She also mentions Julian Barbour, who has apparently posited a theory about how time is not a necessary cosmological dimension as well. Quite a rabbit hole. I can see why people get into this.

Re: New Evidence Against the Standard Model of Cosmology

#98

> Two years ago, I told you about a paper by Subir Sarkar and his colleagues, that showed if one analyses the supernovae data correctly, without assuming that the cosmological principle holds on too short distances, then the evidence for dark energy disappears. That paper has been almost entirely ignored by other scientists. Is this a case of science advancing one funeral at a time? We have to wait for the dark energ…

I think this is an aside to what you're asking, but "science advances one funeral at a time" was a clever slogan and not an empirically tested hypothesis.

It’s not meant to be an empirically testable hypotheses though.

Re: New Evidence Against the Standard Model of Cosmology

#99

Any time dissenting physics/astronomy opinions show up on here, it's always Sabine Hossenfelder. Is she a lone wolf or the face of a larger community?

She comes into the field from a mathematical background. In that sense she is an outsider.

That is so bizarre. And where would physics be without the mathematicians since Newton? Not a pretty picture would be my guess. But maybe I'm wrong, and all the experiments done in lieu of solving triple-intervals would have made a profound difference. (Einstein's best work came before he got bogged down in math.)

Re: New Evidence Against the Standard Model of Cosmology

#100
post #46

Any time dissenting physics/astronomy opinions show up on here, it's always Sabine Hossenfelder. Is she a lone wolf or the face of a larger community?

She might be right but, as of now, the evidence shows that she is probably not right. But as with everything, contrarian point of view is always popular on the internet. And we all want be in the know (have some secret knowledge) thus posts like this are popular. So if she is really right we will feel like winners - if not, who cares: it is internet.

The love of contrarian views can be quite nauseating on hacker news. Post a somewhat mainstream, but interesting article, and prepare to watch it get nit-picked to death before commenters conclude it was only published due to reviewer friendships and p hacking. Meanwhile a contrarian article is immediately accepted as fact and the only reason scientists haven’t agreed is that they’re too stubborn.
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