Echos from BEFORE the Big Bang?

ML1
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Topic 195474

Here's some rather interesting observations and the beginnings of an interesting theory:

Cosmos may show echoes of events before Big Bang

Renowned cosmologist Roger Penrose said that analysis of this cosmic microwave background showed echoes of previous Big Bang-like events.

The events appear as "rings" around galaxy clusters in which the variation in the background is unusually low. ...

The idea hasn't gone through peer review yet, but it does look rather interesting.

... Or could another explanation be that we're seeing gravitational (wave?) artefacts?... Even electromagnetic interferometry effects due to gravitational waves or gravitational lensing?

Keep searchin',
Martin

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tullio
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Echos from BEFORE the Big Bang?

I saw a review in Nature magazine about a book by Roger Penrose which exposed a theory about cycles in time, but i cannot remember the title. A similar theory was put forward by the great logician Kurt Goedel as a possible solution to Einstein's equations. If you go ahead in time you'll return to your starting point, as cycling a spherical sueface.
Tullio

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RE: Here's some rather

Quote:

Here's some rather interesting observations and the beginnings of an interesting theory:

Cosmos may show echoes of events before Big Bang

And here's perhaps the first of the rebuttals:

No evidence of time before Big Bang

Latest research deflates the idea that the Universe cycles for eternity

Our view of the early Universe may be full of mysterious circles — and even triangles — but that doesn't mean we're seeing evidence of events that took place before the Big Bang. So says a trio of papers taking aim at a recent claim that concentric rings of uniform temperature within the cosmic microwave background — the radiation left over from the Big Bang — might, in fact, be...

Some of the puns in there are even worse than mine! Why do journalists have to mangle science so badly?... Merely no deep understanding and an abuse of what comes to be seen as just 'jargon'?

Keep searchin',
Martin

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Orgil
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I have some simple curious

I have some simple curious doubts. From any point of view it is kind of naive that current dominating theory try to prove that universe started 14,5 billion years ago with an explosion. What happened in pre big bang period? If this current dissipating matters or stars supposedly end then what will happen in post universe period should something explode again?

Since scientifically known universe and matters occupy only 5% of universe and rest belong to unknown dark energy and dark matter means whole big bang theory possibly less than 50% realistic.

mikey
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RE: I have some simple

Quote:

I have some simple curious doubts. From any point of view it is kind of naive that current dominating theory try to prove that universe started 14,5 billion years ago with an explosion. What happened in pre big bang period? If this current dissipating matters or stars supposedly end then what will happen in post universe period should something explode again?

Since scientifically known universe and matters occupy only 5% of universe and rest belong to unknown dark energy and dark matter means whole big bang theory possibly less than 50% realistic.

The difficulty in your question is sort of like you trying to explain what happened to you before you were conceived, it just isn't possible with our current methods of testing and theories. As for what will happen after everything is gone, that too is near impossible with our current methods and theories. Sure EVERYONE has an idea, but no one has any proof yet. I have even once said that the 'big bang' is the result of all that stuff going into a black hole but the people that KNOW what is going on, at least as much as anyone can know, tell me that is just dumb! So theories abound but currently facts do not, so more info is required until anything can be refined into some kind of theory that will fit all the facts. Until then all theories are just that, wild a$$ guesses!

Mike Hewson
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I'm currently ~ 1/2 way thru

I'm currently ~ 1/2 way thru reading Penrose's latest offering - Cycles Of Time - which gives his view of this topic. If I can make a good fist of it ( it has some unusual/novel subtleties ) I'll return and give suitable explanation & comment. Well, that's the plan ..... ;-)

Cheers, Mike.

I have made this letter longer than usual because I lack the time to make it shorter. Blaise Pascal

Orgil
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As watching those string

As watching those string theory documentaries if that field succeed dramatically then many physics and universe theories would change in unexpected scale.

Mike Hewson
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RE: As watching those

Quote:
As watching those string theory documentaries if that field succeed dramatically then many physics and universe theories would change in unexpected scale.


Unfortunately that's pretty well all that string theory has produced. Documentaries. There's been not one testable prediction, not a single number, emitted in some 30+ years. It's pure mathematics awaiting real-world application.

Cheers, Mike.

I have made this letter longer than usual because I lack the time to make it shorter. Blaise Pascal

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