What will happen to the universe?

[Urban Ranger]

Originally posted by Vesayen
Quantify intelligence and i'll try to give you an answer.

Fair enough. How about the "sudden increase in brain size due to the increase in cranium capacity?"

[Vesayen]

There are an ###load of theories on that. Shift in climate resulting in a much higher protein and fat diet seems one of the better ones.

[Lorizael]

Originally posted by Zkribbler


(a) you're guessing and (b) yep, even with significantly more matter than anti-matter, there'll still be a really big kaboooooooooom.

I'm not guessing. This is what most who study cosmology tend to think.

[Zkribbler]

That's just because they're MCPs -- Matter Chauvinist Pigs.

[Lorizael]

Very white teeth, you have.

[Blaupanzer]

Originally posted by Lorizael


I'm not guessing. This is what most who study cosmology tend to think.

Most people who study cosmology admit they don't really know for sure how this incarnation of the universe ends. However, current theory leans toward the ultimate heat death of the universe due to entropy.

Certain events that some cosmologists either think they perceive or want to perceive require the universe be composed of considerably more matter than can currently be identified. In order for their theories to still hold water these folks have postulated that there must be dark matter out there that we cannot yet detect. Unfortunately for them, it is also possible that their theories are wrong, thus dark matter is not required to explain it.

[Lorizael]

Originally posted by Blaupanzer


Most people who study cosmology admit they don't really know for sure how this incarnation of the universe ends. However, current theory leans toward the ultimate heat death of the universe due to entropy.

Certain events that some cosmologists either think they perceive or want to perceive require the universe be composed of considerably more matter than can currently be identified. In order for their theories to still hold water these folks have postulated that there must be dark matter out there that we cannot yet detect. Unfortunately for them, it is also possible that their theories are wrong, thus dark matter is not required to explain it.

I completely fail to understand what part of my post you're responding to. Except that I used the word cosmology.

[KrazyHorse]

Originally posted by Zkribbler


(a) you're guessing

No, he isn't. If there were similar amounts then there would be some massive problems with cosmological observations.

[KrazyHorse]

Originally posted by Blaupanzer


Most people who study cosmology admit they don't really know for sure how this incarnation of the universe ends. However, current theory leans toward the ultimate heat death of the universe due to entropy.

Certain events that some cosmologists either think they perceive or want to perceive require the universe be composed of considerably more matter than can currently be identified. In order for their theories to still hold water these folks have postulated that there must be dark matter out there that we cannot yet detect. Unfortunately for them, it is also possible that their theories are wrong, thus dark matter is not required to explain it.

What's your point? Of course our theories could be wrong. There are people who work on theories without dark matter and without dark energy. But they are currently marginalised because the lambda-CDM model just works so ****ing well, and the theories they come up with don't.

[KrazyHorse]

Originally posted by Lorizael


I completely fail to understand what part of my post you're responding to. Except that I used the word cosmology.

[KrazyHorse]

p.s. Blaupanzer, I am a cosmologist

[RGBVideo]

Originally posted by KrazyHorse
lambda-CDM model

IIRC lambda is the symbol of cosmological constant, but what on earth does "CDM" stand for? I've never heard of that term before and I doubt many others here have; why not use more commonly known terms when talking to non-physicists?

edit:

p.s. Blaupanzer, I am a cosmologist

That's your official occupation at the university now? cool

[KrazyHorse]

Originally posted by VJ

IIRC lambda is the symbol of cosmological constant, but what on earth does "CDM" stand for? I've never heard of that term before and I doubt many others here have; why not use more commonly known terms when talking to non-physicists?

lambda-CDM is standard terminology, dude. I don't even think when I write that.

CDM stands for "cold dark matter"

[KrazyHorse]

Originally posted by VJ
That's your official occupation at the university now? cool

Uh...no. My official title is Graduate Research Assistant. But given that I have been granted a Master's degree, am working on my PhD and have as an advisor the most famous observational cosmologist in the world, I feel justified in calling myself one...

[lord of the mark]

KH

is there any talk, from a meta POV, of a kind of Copernican view of the history of cosmology, etc?

What i mean is, the standard Copernican principle says (IIUC) that theres nothing unique about earth and its environs.

Applying that to time it would seem odd that, in a universe thats billions of years old, and has billions of years to go, that its JUST NOW that we should have established, to a pretty close degree of truth, exactly how everything began, and how it will end.

Im not suggesting what you do isnt of value, nor am i supporting anyparticular antiscientific POV (creationism or anything else) More like just taking a certain skeptical POV when non-physicists (or, well, physicists for that matter) worry about the end of the universe, or try to derive metaphysical conclusions from the current statements of physics about the start and end of the universe. It just seems kinda silly is all. More than we know what the physical state of the universe will be like in a few billion years, we know that science will look radically different in a few thousand years, considering how young science actually is. I mean the human species is a couple million years old, and its only in the last hundred years we figured out there are multiple galaxies.

I realize this is more philosophy, history,etc, and not a question of physics, but it occured to me.

Carry on.