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Radioactiveman5
5 months ago

No, even if the universe were to collapse again. It was never concentrated in one point (where the timeline would also disappear).

The fluctuation in the quantum vacuum, which is now often discussed as a possible trigger for the Big Bang, already presupposes a certain amount of space and cannot be reconciled with the famous "singularity." These are two different things.

Anyone who is a fan of "quantum fluctuation" can let go of the idea that the Big Bang "was the beginning of space and time" and that "the question of what came before therefore does not arise."

Anyone who is a fan of the "singularity" has to do without quantum physics and come up with an idea as to how the entire energy of the universe could have sprung up from a single point without any motivation, after having waited there obediently.

Physikraxi
5 months ago

Do you think that time will end at some point and with it space?

I think time can't end, because what we call change is the effect of a circular function. Thus, an effect over an ultra-long distance becomes the cause of a new effect or change, which we ultimately understand as time.

If you imagine a long spiral that forms a circle, then you've come relatively close to my idea. This way, at some point, all possible combinations will be exhausted, and everything will start all over again.

I could well imagine that this has always been the case and that the current present has already repeated itself countless times.

hologence
5 months ago

No. The observations point to an increasing pace of expansion; it doesn't look like the Big Crunch is about to happen.

norbertk62
5 months ago

If we assume that space and time came into being at the same time as the Big Bang, then I can well imagine that both – if they have a beginning – also have an end.

It is difficult to imagine that space is constantly expanding (the famous question: where to? What will the end look like?) – but when it comes to time, well, it is even more difficult.

On top of that, there's the question: what was before the Big Bang? – It's obvious: nothing we can understand now, because without time, there is no before.

The problem is imagining what it should look like – it makes your brain spin.

Etain12
5 months ago

Yes. I think so. Based on the current model of the universe, time ends with space.

alysonhydree
5 months ago

Time has no beginning and no end. Just like space. Everything has always been moving. There has never been a standstill.

Etain12
5 months ago
Reply to  alysonhydree

Es gab ein davor.