Forgive me for not being a physicist, but what is the big bang expanding into, and how did that existence come to be?
- Anonymous11 months ago
Nothing that didn't birth us doesn't necessarily require anything at our disposal to explain it
- DixonLv 711 months ago
It is expanding inside of itself. No one asked for my advice at the time but they really should have coined the word "inpanding" to describe what is going on because expanding sends all the wrong messages. No one can say how it came to be but there is good evidence of a significant event and rapid inpansion about 13.8 bn years ago.
- Dr. ZorroLv 711 months ago
Imagine an infinite block of foam compressed everywhere. Now let that infinite block suddenly expand everywhere inside. It expands into itself because it itself is already infinite. You don’t need anything outside infinity to expand into. But the density gets less everywhere, so sitting at some point and looking around you you will see distances between points increase everywhere.
So don’t think of the Big Bang as an explosion at one point. The Big Bang (without a sound) happened at each and every point, like a infinitely extended dough.raising everywhere.
- Jeffrey KLv 611 months ago
You are forgiven for not being a physicist. I am a physicist, bit it isn't all that great.
Space itself is expanding, but not onto anything. Don't picture it from the outside. There is no outside. The distance between two points in space is just increasing. No object are moving. And the universe is not embedded in another space. Don't take those diagrams too literally.
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- nebLv 711 months ago
Einstein’s general relativity explains the structure of spacetime. It requires three space dimensions, one time dimension, and a scale factor that describes how the separation between space points can expand or contract depending on differing matter/energy conditions in the universe. The spacetime of Einstein is something called a Riemann manifold which is fully described by its internal metric and does not require it to be embedded in anything. In other words, it can expand or contract without needing to be expanding or contracting into something. It doesn’t say it can’t be expanding into something, but means that is not a requirement. So, until we know differently, best to go with the simplest idea.
As for how existence came into being, there are lots of theories but no evidence. The theories range from vacuum fluctuations in an eternal quantum vacuum to colliding branes from m-theory. It is likely that none are correct and we may need to wait for the holy grail of physics, a TOE (theory of everything).
- KelleyLv 411 months ago
In the beginning was God
- MorningfoxLv 711 months ago
The so-called Big Bang is just a name that was slapped on the theory of the early universe. If it happened to be called the "Green Unicorn" theory, would you ask where are the green unicorns? The event way back about 13 billion years ago was not big, and it was not a bang. "Big Bang" is just a silly name made up by Fred Hoyle back in 1949. He was a scientist who had a different theory at the time.
The initial event (the Big Bang, since everybody calls it that) is not expanding into anything. It is the expansion of space itself, everywhere, in all directions.
As for how did it come into existence ... nobody really knows. It seems that the universe we know is just one of those things that happen.