Tilted Forum Project Discussion Community - View Single Post

Yakk · 07-11-2005, 07:29 AM

Phage, there is no need for the "finite sized universe" hypothesis.

All experiments attempting to find the width of the universe have failed.

If this was true, space was never a point.

On the other hand, there are models that seem to indicate a phenomina like our visible universe could inflate out of a 20-lb concentration of a particular strange field in a hot medium. If this was the case, then the visible universe would just be an inflated bubble within something else, much much larger than our cosmic horizon. We would be like underwater animals, living at a hot spring on the bottom of the ocean. A seemingly infinite universe to them is just some small corner of the 'real' universe.

Secondly, below Plank-distance and Plank-time, modern physics is silent. In the early parts of the big bang, the equations of physics keep spewing out infinities and nonsense: cosmologists have pushed back the model of the universe to fractions of a second after "time 0", but the last little bit is not understood.

The fact is, alot of these things are still up in the air. So making definite statements about things like this isn't honest.

There are many models which explain why the visible universe seems like it is. One of the strongest involves a 'space inflation field' in a very hot early universe -- that model explains everything from the baseline universal ratio of helium to hydrogen to the clustering of galaxies to the tempurature and tempurature variation of interstellar space, to redshift from far galaxies and stars. The "hot inflation" model of the universe is called "the big bang". But even in that one model, there are many details that are not ironed out, and there are competing theories that explain what we can see but make different predictions about things we can't yet detect. (Example: gravity wave predictions differ between the "big bang" model and the "brane collision" model)

07-11-2005, 07:29 AM	#44 (permalink)
Yakk Wehret Den Anfängen! Location: Ontario, Canada	Phage, there is no need for the "finite sized universe" hypothesis. All experiments attempting to find the width of the universe have failed. If this was true, space was never a point. On the other hand, there are models that seem to indicate a phenomina like our visible universe could inflate out of a 20-lb concentration of a particular strange field in a hot medium. If this was the case, then the visible universe would just be an inflated bubble within something else, much much larger than our cosmic horizon. We would be like underwater animals, living at a hot spring on the bottom of the ocean. A seemingly infinite universe to them is just some small corner of the 'real' universe. Secondly, below Plank-distance and Plank-time, modern physics is silent. In the early parts of the big bang, the equations of physics keep spewing out infinities and nonsense: cosmologists have pushed back the model of the universe to fractions of a second after "time 0", but the last little bit is not understood. The fact is, alot of these things are still up in the air. So making definite statements about things like this isn't honest. There are many models which explain why the visible universe seems like it is. One of the strongest involves a 'space inflation field' in a very hot early universe -- that model explains everything from the baseline universal ratio of helium to hydrogen to the clustering of galaxies to the tempurature and tempurature variation of interstellar space, to redshift from far galaxies and stars. The "hot inflation" model of the universe is called "the big bang". But even in that one model, there are many details that are not ironed out, and there are competing theories that explain what we can see but make different predictions about things we can't yet detect. (Example: gravity wave predictions differ between the "big bang" model and the "brane collision" model) __________________ Last edited by JHVH : 10-29-4004 BC at 09:00 PM. Reason: Time for a rest.