Friday, March 21, 2014

"You are standing on a hill, and you can fall in this direction, you can fall in that direction, and if you're drunk, eventually you must fall. Inflation is instability of our space with respect to its expansion"

"On Monday, March 17, scientists announced new findings that mark the first-ever direct evidence of primordial gravitational waves — ripples in space-time created just after the universe began. If the results are confirmed, they would provide smoking-gun evidence that space-time expanded at many times the speed of light just after the Big Bang 13.8 billion years ago."

"The new research also lends credence to the idea of a multiverse. This theory posits that, when the universe grew exponentially in the first tiny fraction of a second after the Big Bang, some parts of space-time expanded more quickly than others. This could have created "bubbles" of space-time that then developed into other universes. The known universe has its own laws of physics, while other universes could have different laws, according to the multiverse concept. [Cosmic Inflation and Gravitational Waves: Complete Coverage]"

"It's hard to build models of inflation that don't lead to a multiverse," Alan Guth, an MIT theoretical physicist unaffiliated with the new study, said during a news conference Monday. "It's not impossible, so I think there's still certainly research that needs to be done. But most models of inflation do lead to a multiverse, and evidence for inflation will be pushing us in the direction of taking [the idea of a] multiverse seriously." READ MORE

 

Closer to home

14 comments:

Rabel said...

Nice association with the video, Lem.

When the aliens arrive, they're going to laugh harder at our cosmology than our religions. Then they'll eat us.

Multiverse my ass.

I wonder what PHX and ST have to say about that.

Nah.

bagoh20 said...

"I wonder what PHX and ST have to say about that."

These two commenters are proof of the existence of multiple universes.

William said...

I forget his name, but some physicist stated that if humanity is the crown of creation and the star player in the cosmic drama, then God created one hell of a proscenium arch........We keep getting smaller and smaller. Now even our universe is an insignificant afterthought. How insignificant can you become and still exist?

chickelit said...

I'm not sure why asymmetry is built into the model.

The closest physical analogy for me is the symmetrical implosion required for the plutonium A-bomb at Los Alamos. They fretted that the implosion would squeeze unsymmetrically because of imperfect timing and unequal explosive charges or even material defects. This would have led to a "leak" in one direction and dud implosion.

It didn't happen.

deborah said...

Is asymmetry more common in creation than symmetry?

bagoh20 said...

"Is asymmetry more common in creation than symmetry?"


Golden Ratio

chickelit said...

deborah said...
Is asymmetry more common in creation than symmetry?

If we parse "creation" as "life" then yes, life is asymmetrical. We are almost exclusively made of one of two possible mirror image molecules.

Enantiomers.

deborah said...

I can dig it, bago, but I'm thinking along the lines of this line fragment,

"in the first tiny fraction of a second after the Big Bang, some parts of space-time expanded more quickly than others. This could have created "bubbles" of space-time that then developed into other universes."

which makes me wonder if a seashell convolutes because the layers grow at different rates.

Or the way a human embryo begins in an asymmetrical, curled tadpole shape.

chickelit said...

Plus there is the whole "anti-matter" universe. Conceptually interesting, at least mathematically.

deborah said...

"Enantiomers."

ergo

chickelit said...

Fathoming Good And Evil

deborah said...

I recall that post, chick. Great photo by your dad.

We're generally symmetrical on the outside, but inside systems seemed to have evolved along a different branch of practicality.

I'll read that Insty link tomorrow...'night!

Chip Ahoy said...

And after all that, this week scientist announced they took measure of all that and detected resonate vibration of creation, heard the echo of the big bang, and I thought, after all this time, after all that expansion, collisions, nuclear explosions in space, crashes, and violence, what a remarkable thing to claim to have heard.

It must be the poetic phrasing, they tend to get carried away.

What I understood by way of the original Cosmos and its accompanying book, a good deal of time is spent explaining the Doppler effect to get at the observation of red-shift and the universe appearing to move away from itself, as if we are somewhere inside a balloon that is expanding.

Each time, each hearing of that, each encounter I'm forced to re-evaluate and think, observation: universe apparently expanding, conclusion: originated with explosion. A dot.

compare with,

observation: universe apparently expanding, conclusion: space respiration. That is expanding, then contracting, then expanding, then contracting.

These fancy expensive impressive observations are made of pervaded space, by beings that live in pervaded space and are made of it, there are no observations of unpervaded space.

It's not even considered.

What is unpervaded space?

Space that is not pervaded with the usual things occupying space and that is pervaded with such things as galaxies, quasars, suns that emanate light and heat, suns that emanate light without heat, suns with heat but not light, dark suns with no light or heat, duh, but also including vast unfathomable stretches at the edges of observable pervaded space where pre-physical particles present there begin reality slowly organizing by pulling into themselves.

Give us a theory about space respiration between pervaded and unpervaded space.

See? You get stuck on one line of thinking and exclude everything else, all other possibilities that are not seen, that cannot be measured or haven't been imagined, or that math hasn't indicated, and sniff that anyone not following along considering alternate possibilities to these vast chasms of unknowns as Flat-Earther.



deborah said...

Astrophysicists who have calculated the mass of the universe, and found there is not enough detectable mass to account for the predicted mass, postulate the existence of dark matter.

Carroll/Trodden

Carroll/Trodden