The Big Bang: Where Did it Come From & Does Time Exist?

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Where did the initial particles or forces that were apart of the big bang come from, because they had to come from somewhere inorder for it to happen. Is there another theory for that?

Also I keep reading a lot of stuff about how time was created then. I always thought that time was just something for humans to make sense and organize things into. I thought that the universe does not no time and does not care about it because we invented it. Is this true that time doesn't really exist technically.
 
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BB didn't have a cause. The universe just is.
 
cam875 said:
Where did the initial particles or forces that were apart of the big bang come from, because they had to come from somewhere inorder for it to happen. Is there another theory for that?
This is what is considered the beginning of the universe. There was no space and time before this event. Quite a few consider this as being 'god' or even yet, god created the big bang. Kind of a philosopihical question if I may add.

cam875 said:
Also I keep reading a lot of stuff about how time was created then. I always thought that time was just something for humans to make sense and organize things into. I thought that the universe does not no time and does not care about it because we invented it. Is this true that time doesn't really exist technically.
Maybe a few sources of where you read this?
Time did not exist prior to the big bang as there was no space for it to govern. If man invented time, then why is it that all matter tends to 'feel' and react to the changes in the space around them? This is what I consider time; not a clock that watches the seconds go by, but the fact that we can are born, interact with the environment, and finally die.
 
If time does not exist without us here to invent it, then that means nothing existed or happened prior to 47 years ago when I came into existence and started observing things... somehow I just don't think so. For any event to happen, a time period is required and things were certainly happening since the uninverse first started expanding until life on Earth became sentient enough to be aware of anything. So I think time is real regardless of whether humans exist to observe it or not. Perhaps the universe is it's own observer. Reminds me of Shroedingers cat. Who is the observer?
 
ok so what instigated the big bang to happen or whatever happened to create our universe.
 
TalonD said:
If time does not exist without us here to invent it, then that means nothing existed or happened prior to 47 years ago when I came into existence and started observing things... somehow I just don't think so. For any event to happen, a time period is required and things were certainly happening since the uninverse first started expanding until life on Earth became sentient enough to be aware of anything. So I think time is real regardless of whether humans exist to observe it or not. Perhaps the universe is it's own observer. Reminds me of Shroedingers cat. Who is the observer?

Time clearly existed before us we didn't "invent" it. but, time can't just have been the creation of the universe that doesn't make sense for that to be true time just would have begun at one random point in... what? I mean time had to exist before the universe began for this to be true, but how can something exist in an absence of nothing lol, It's very clear that almost nothing can exist how we see it using any methods known to man today, think about it how can something exist in the first place D: it's so confusing, and time just makes it worse.
 
https://en.wikipedia.org/wiki/Recombination_(cosmology) Was a matter density right after the decoupling low enough to consider the vacuum as the actual vacuum, and not the medium through which the light propagates with the speed lower than ##({\epsilon_0\mu_0})^{-1/2}##? I'm asking this in context of the calculation of the observable universe radius, where the time integral of the inverse of the scale factor is multiplied by the constant speed of light ##c##.
The formal paper is here. The Rutgers University news has published a story about an image being closely examined at their New Brunswick campus. Here is an excerpt: Computer modeling of the gravitational lens by Keeton and Eid showed that the four visible foreground galaxies causing the gravitational bending couldn’t explain the details of the five-image pattern. Only with the addition of a large, invisible mass, in this case, a dark matter halo, could the model match the observations...
Hi, I’m pretty new to cosmology and I’m trying to get my head around the Big Bang and the potential infinite extent of the universe as a whole. There’s lots of misleading info out there but this forum and a few others have helped me and I just wanted to check I have the right idea. The Big Bang was the creation of space and time. At this instant t=0 space was infinite in size but the scale factor was zero. I’m picturing it (hopefully correctly) like an excel spreadsheet with infinite...

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