Harbal wrote: ↑Tue Jan 02, 2024 9:30 pm
Immanuel Can wrote: ↑Tue Jan 02, 2024 8:00 pm
Harbal wrote: ↑Tue Jan 02, 2024 7:25 pm
So that is looking at our universe and saying this is the level of "order" that qualifies as a universe?
No. You were asking what the state of disorder prior to any such concept as a "universe" would be. Because once we already have a universe, we've already got considerable order...and that's without even accounting for things like planets capable of bearing life and conscious beings.
So if we have to give an account for the very possibility of order in the universe, we can't start with, "Well, once a universe already exists..."
But you are basing your definition of "order" on the state of affairs in this universe.
Any routine definition of "order" will do. There's actually so much of it in this universe that we don't need any special definition to show how true it is.
We could point to the "order" manifest in the relations of planets, right down to things like the physical constants, or to genetic complexity, or of environmental features, or the complexity of the human mind... there's no shortage at all, to say the least.
IC wrote:Harbal wrote:I didn't know that. So when physicists speculate about multiple universes, or a multiverse, where things may work differently to how they are in our known universe, they are thinking of multiple states of order that may be different to the order we see in our universe?
Exactly so.
So then science supports the idea of the possibility of an infinite variety of states of order.
Not at all. The irony is that there's no "science" at all in the multiple universe hypothesis. And that's because, by definition, science is empirical, having to do with things in THIS universe. And THIS universe is, by definition, everything that exists in this reality, everything we can see, touch, taste, feel, do, travel in, measure, smell, investigate, and so on. If some new thing comes into our experience, then by definition, it's not part of
another "universe," but only a newly-discovered feature of THIS universe.
That's why there's no such thing as a "test for other universes." Their very existence is just an imagining, a theoretical hope on the part of speculators. We have no reason at all to believe any such exist...and if they did, we could never know anything about them, by definition, without them being absorbed into this universe.
The Oxford Dictionary definition of "universe" is as follows:
u·ni·verse
/ˈyo͞onəvərs/
noun
noun: universe; noun: the universe
all existing matter and space considered as a whole; the cosmos.
That means everything that exists. Everything. That's what the term "universe" actually refers to.
IC wrote:Harbal wrote:But that seems to be assuming a complete absence of physical laws.
Exactly so. If we want to explain how we live in a universe that has physical laws, we can't take the physical laws as a simple given, either. We need to say how they came to be established as 'laws.'
At the present time (in the days when THIS was being written

), we can't say how the physical laws came to be established. And when I say we, I am including you.
That's kind of you. But maybe I can. Let us see.
IC wrote:Harbal wrote:And that is just one of the infinite possibilities of what a "disordered state of things" could be like, is it?
It's the state that things should be in, by all probability. The great surprise is that they are not like that.
"By all probability" according to what?
Here you go.
https://slate.com/technology/2013/08/sy ... exist.html
Well, the real problem with my analogy is that it posits the existence of a car, which is already an ordered entity. Perhaps a better analogy would be to say, "When was the last time you took a bunch of random energy, threw it all up in random space, and got order out of that?" That's a little far from our ordinary experience, whereas seeing things blow up is closer to home.
But the underlying problem remains: You are looking at it entirely from the perspective of someone whose idea of order is only based on the type of order that makes his own existence possible.
Not really a problem. It's the only universe we have, or can know of.