Infinity and the big bang

Soldato
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I'm a science nut. I watch everything on TV and Youtube regarding anything science related. But there is one thing I just can't get my head around. The current accepted model of the origins of the universe is the big bang. From an infinitesimally small point everything in the universe we see today exploded and expanded, creating the universe we see today.

So what caused the big bang and what existed before it? If time is infinite then there must have been something before the big bang. Also, if time is infinite then every possible scenaro will be played out.

So, if every possibilty will be played out then when I die, I'll come back as another person, maybe a homeless bum or maybe the President of the United States. I could come back as a spider, or an antelope or maybe a dinosaur.

Infinity seems to be both plausable and incomprehensible. A dicotomy which blows my mind.

But back to the big bang. Where did all this matter come from? I've read philosphers saying that everything that exists has a beginning. Well that's logical but it doesn't seem to apply to our universe.
It is difficult enough to imagine a time, roughly 13.7 billion years ago, when the entire universe existed as a singularity. According to the big bang theory, one of the main contenders vying to explain how the universe came to be, all the matter in the cosmos and all of space itself existed in a form smaller than a subatomic particle.

Once you think about that, an even more difficult question arises: What existed just before the big bang occurred? Also how could the entire universe exist in a point smaller than a subatomic particle?

Considering everything I've said, it's no suprise to me that many people turn to religion, because religion has the one single answer that answers everything. God did it. What it doesn't answer is where did God come from? So basically, if your an atheist and accept science to answer difficult questions or if you're religious and accept God did it, you're still no closer to answering the questions of origins.

I've come to the realisation that infinity is probably the reason we are all here. Every possible scenario played out over and over for ever. Maybe there are some things we just can't know and will never know. I find that frustrating but I take comfort in the fact that some genious who is yet to be born will figure the whole thing out.
 
Oh yeah. Well that could be your answer. Slight problem in that the expansion of the universe seems to be accelerating rather than slowing...

Yeah. So if you rewind time then the universe would be shrinking, hence the big bang theory. If you got the concept of my first post, I'm basically bemused by what caused the big bang and what was there before it.
 
Yeah. So if you rewind time then the universe would be shrinking, hence the big bang theory. If you got the concept of my first post, I'm basically bemused by what caused the big bang and what was there before it.

Your problem is your understanding of infinity. If the universe has been expanding and crushing for infinity, there is no 'before' or 'after' it'll cycle like that, and has been cycling like that for infinity. The Big Bang references the last time the crunch finished and the expansion started. That's one theory at least.
 
So, if every possibilty will be played out then when I die, I'll come back as another person, maybe a homeless bum or maybe the President of the United States. I could come back as a spider, or an antelope or maybe a dinosaur.

huh? you seem to be mixing up science and religion.
 
I'll write up my theory later on when I am at a proper keyboard. But for now consider this...

Time exists as part of Spacetime. Before the big bang (assuming that theory is correct) time didn't exist. If the universe ends, either through a crunch or a freeze then tine will also probably end.

Without time there is no past and no future. So in the past we didn't exist in that future (because time didn't exist) and in the future we wouldn't have existed in the past (because time ceases to exist).

So we really don't exist right now.
 
Yes, infinity is a scary prospect and is also based on our knowledge (mainly) of time. Something that is infinite takes a long time to get to or to do.
Most things in our lives are finite, including our life, which I think makes infinite time/space something difficult to comprehend.

The Bing Bang is only a theory as well. It is all that science can theorise based on the information that we have/know about the universe. Given the universe's age vs humanity it is possibly not that much knowledge. The theories only come from what we perceive through light received through telescopes too and trying to trace everything back to a single point of origin.

People will come up with many theories as to what came before the start of the current known universe, some could say it's an all-powerful being, some try to find some scientific explanation. It really is a mind **** when you consider time is infinite then really anything could happen.

The Universe is expanding.. but into what.. if the Universe is what we know then how can it expand into 'nothing'..

I think I need to lie down. :D
 
are you really expecting an answer?
Nobody knows, and its doubtful that anyone will ever know .

Is time or infinity even real? - i'm doubtful.

I think the evidence required to find out these answers is likely untestable.
 
are you really expecting an answer?
Nobody knows, and its doubtful that anyone will ever know .

Is time or infinity even real? - i'm doubtful.

I think the evidence required to find out these answers is likely untestable.

Of course I'm not expecting an answer. What I was hoping for was an interesting discussion. I find this topic interesting so I'm hoping like minded people will join in. As for the trolls, I'll just ignore them.
 
Of course I'm not expecting an answer. What I was hoping for was an interesting discussion. I find this topic interesting so I'm hoping like minded people will join in. As for the trolls, I'll just ignore them.

i think there is no harm in looking, but i don't honestly believe that the human brain is capable of understanding the real complexity of the universe, whatever that is.
The measurability is a problem - if we assume that dark matter and dark energy is real (highly debatable), then how do you even measure it?
Its a bit like what really happens in a black hole - nobody knows, and due to the physical laws of the universe i don't see how anyone could ever know.
 
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