Reinventing the Universe: Thacker Cosmology

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    Cosmology
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Discussion Overview

The discussion revolves around an alternative cosmology site that presents various theories challenging established cosmological concepts. Participants are invited to critique these theories, exploring their validity and the underlying assumptions.

Discussion Character

  • Debate/contested
  • Exploratory

Main Points Raised

  • Some participants express skepticism about the understanding of modern cosmology and particle physics demonstrated by the theories on the site.
  • One participant highlights specific claims from the site, arguing that they misrepresent established concepts such as gravitational lensing and the Cosmic Microwave Background (CMB) radiation.
  • Concerns are raised about the author's framing of astronomical knowledge, suggesting a tendency towards conspiracy theory rhetoric.
  • Another participant suggests that the theories may not warrant serious consideration due to perceived biases and a lack of scientific rigor.
  • There is a contention regarding the openness of scientific inquiry, with some arguing that a critical stance towards unconventional theories is necessary for scientific objectivity.

Areas of Agreement / Disagreement

Participants generally disagree on the validity and credibility of the theories presented on the alternative cosmology site. Some express a willingness to engage with the theories critically, while others dismiss them outright based on perceived flaws and biases.

Contextual Notes

Participants note various assumptions underlying the alternative theories, including misunderstandings of established cosmological principles. The discussion reflects a range of perspectives on the nature of scientific inquiry and the criteria for evaluating unconventional theories.

energia
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here is an alternative cosmology site I found on the net

the theories outlined here should keep you busy for a while

since the site is copyright protected I will only post the link and not the actual text from the site

Reinventing the Universe


take the time to read each theory before discussing it
and then do your best to outline the faults (or evidence if any) of each theory


Disclaimer ~ the opinions stated in the above link are not the opinions of physics forums nor the author of this topic
 
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energia said:
here is an alternative cosmology site I found on the net

the theories outlined here should keep you busy for a while

Probably not, since the author seems to show a lack of understanding of modern cosmology and particle physics. Also, with webpages entitled "Outrageous things astronomers would have us believe!", the sense of 'conspiracy theory' is evoked.

Of the many things I found objectionable, a few stand out:

He mentions in several places that "astronomers won't tell you X", where X are such things as "gravitational lenses create multiple images!". In fact, this is quite well known to anyone who understand gravitational lenses.

On the cosmology side, he doesn't seem to understand that there is more than just special relativistic redshift. He makes statements like "According to Big Bang theorists, the universe is about 15 billion years old. But it is utterly impossible for the various structures in the universe (galaxies, galactic clusters, etc.) to have formed in this short time. This alone should invalidate the Big Bang theory!", which is an (unjustified) opinion and not a failure of modern theory.

He states "The Cosmic Background Radiation is used to "prove" that the Big Bang occurred. But the radiation should be "clumpy", to match the clumpiness of the universe. Instead it is extremely smooth." , but this is completely the opposite of current CMB research, which shows a background riddled with temperature anisotropies (i.e. NOT isotropic) which are believed to have seeded the large-scale structure of the universe.

Finally, "Astronomers have absolutely no idea where ultra-high-energy cosmic rays come from. ". So what -- there a lot we don't know. It doesn't mean everything we do know is wrong.

One last final statement: the fact that the author consistently refers to "astronomers" (instead of cosmologists, astrophysicists, relativists, or just plain physicists) is indicative of something.

It's my experience that ground-breaking theories tend not to be found on copyrighted websites.
 
energia said:
the theories outlined here should keep you busy for a while
Probably not, since after GRQC's ringing endorsement, I won't read it...
 
Probably not, since after GRQC's ringing endorsement, I won't read it

then you have a closed mind

scientists are objective not bigoted - in which case you're not qualified to have an opinion anyway

this subject is best left to scientists
 
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