(August 16, 2018 at 1:48 pm)SteveII Wrote:(August 16, 2018 at 8:49 am)pocaracas Wrote: So an infinite spacetime, in this vacuum state is always in a constant production of particles and fields. What's keeping this mechanism from popping a Universe?
No matter how unlikely it actually is, in an infinity of spacetime, it must surely happen... perhaps even an infinity of Universes are bound to happen. Surely, not all at the same point of spacetime.
You continue referring to spacetime as something other than a model of the real things it describes: 3 spacial, 1 time dimensions. Spacetime is not itself a concrete object. When you propose that spacetime is infinite, that is inaccurate. You are proposing that the 3+1 dimensions are infinite. These 3+1 dimensions are bound in our universe--a universe that by most accounts had some sort of beginning.
Round and round we go?
Spacetime is a framework upon which the Universe and everything in it are.
Spacetime is not a model.
The mathematical description of spacetime may be considered a model, yes.
(August 16, 2018 at 1:48 pm)SteveII Wrote: So, talking about anything outside of our universe is pure metaphysics where anyone can dream up anything. The problem is that dreams have to be internally consistent.
Yes, anyone can dream up of anything in metaphysics.... That's why, earlier, when I brought forth this notion, I used words such as "can" and "might"... and you mocked me for it.
(August 16, 2018 at 1:48 pm)SteveII Wrote: If this magic quantum vacuum (that apparently can produce anything) always existed, it would have created our universe an infinite time ago and infinite amount of times exactly as it is now.
I think not.... It seems that such a generation of a Universe should be a cascading event that would result in what we call a big bang.... and everything then flows.
(August 16, 2018 at 1:48 pm)SteveII Wrote: In addition, there would be an infinite amount of universes that ALSO existed that I typed this sentence without punctuation. You have just traded one brute fact (our universe) with an infinitely more complex brute fact (a truly infinite amount of universes). I think William of Occam would have something to say about that.
Yeah.... Will might have a problem with your view of this potential reality...
(August 16, 2018 at 1:48 pm)SteveII Wrote:Quote: It relates to your argument(s), because it totally removes any agency from the cause of the Universe. It's just random.
Like your first cause, god, needs to be a brute fact to you... I keep things simple and think it's more reasonable to consider spacetime as the brute fact.
If you posit a physical thing always existing, you have to wave your hand at the impossible logic of traversing an infinite series of events and just declare it must be so for the sole reason of avoiding a first cause. Fine. You are probably willing to pay that intellectual price and go with 'brute fact'.
Spacetime, as the framework that it is, has an existence that transcends a time vector... it IS the time vector (along with the other 3 spatial vectors).
Our inability to properly define time is a huge hurtle in any discussion of this sort and I totally own that it's a difficult concept to put into words and I am probably doing a very poor job at it.
If spcaetime is indeed independent from our Universe, as some theories suggest, then it may well be infinite and contain in it all the potential to create a Universe and, within that, life and reasoning minds.
(August 16, 2018 at 1:48 pm)SteveII Wrote: However, God is by definition not a brute fact. It is not that he does not have an explanation, it is that the explanation of his existence is built into the definition of God. Plain and simple, if God exists, he is a necessary being. That means he does not need an explanation.
If I remember the meta correctly, the most basic feature attributed to God is "existence" itself. The concept of existence.
Existence is necessary for anything to exist, right?
Wrong. Not necessarily right, at least.
Existence can simply be a quality that humans have bestowed upon all that exists.
Humans and their pattern seeking brains... Other sentient being may have similar pattern seeking "brains" that would make them come to the same categorization of things that exist... But does that mean that existence is an feature independent of those reasoning minds?
(August 16, 2018 at 1:48 pm)SteveII Wrote:Quote:Spacetime has the added benefit of having actually been verified to produce these particles... which should be a very good hint.
First, quantum vacuum =/= spacetime.
Perhaps... perhaps not.
The way I see it, Quantum vacuum and spacetime are indistinguishable.
(August 16, 2018 at 1:48 pm)SteveII Wrote: Second, the energy for the particles are already in the quantum vacuum. We don't understand is what determines when they will materialize and fade back into the energy field. You have an extraordinary leap to get from indeterminately appearing particles from an energy field that produces, well, indeterminately appearing particles to a can of Coke appearing, let alone producing a universe with its own matter, energy, physical laws, etc.
I see you like aluminium.
As to the leap, yes there is such a leap.
My point is, essentially, that such a thing can happen and it can fit with what is reasonably expected of a Universe precursor.
At some point, the philosophy argues that this precursor must have features of a mind, for, if we have true free will, independent of the brain substrate, our mind is essentially disembodied, and so a disembodied mind must be a possibility of that precursor.
I think the human mind is an emergent property of the brain and all the connections it makes with the rest of the body, along with the extension to its environment.
As such, I see no need to posit a mind-ness (or whatever we may call it... simply a mind?) as a property of a precursor of the Universe.
If there is no mind, there is no need to call it god, for that word comes along with a whole lot of baggage.
(August 16, 2018 at 1:48 pm)SteveII Wrote: After all this, believing in God seems pretty mundane.
I don't think so... but feel free to think how you do. It's not like we can probe beyond the Universe... (https://www.sciencealert.com/penrose-b-m...-cosmology... maybe we can... )