jake jot
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Fra said:This could be possible probably in several way.
LQG in small parts attempts some of this, but the approach is not radical enough and has no ambition to account for other forces. and it uncritically brings in quantum formalism in an inappropriate way imo.
My way of thinking here is if you start from building blocks of the smallest possible distinghuishable matter or agents, with certain interaction rules that only defines interactions with the environment.Then try to show that when these parts self-organize, spacetime as we know it emerge spontaneously. And along with this internal and mixe internal/external transformations endcode other forces. Interacting agents would fall in this category. Its the population and emergent evolved communication that should (as per the conjecture) encode matter contents and the laws of physics. All this presumes not 4D spacetime, nor GR in its starting poits. Instead a universal attraction, as well as locality is built into the design. It remaines however to show that the "residual universal attraction" that is left once you "shave off" the other forces, is GR in the low energy cosmo scale. In this case, gravity can also be seen as the residual entropic forces, once the internal interactions are separated. But I am not aware of much papers to direct to, where this is well develped.
/Fredrik
Do you know of arxiv topics about what sits behind space and matter? I read this in old archive at PF in 2005. The subtle title is controversial so let's not discuss it, except this part only.
Like Einstein said, there is no absolute space, space is an extension of matter. Space is not primary, nor fundamental, it does not exist by itself, it is a product, just as matter and time are products. Space is dynamic, it fluctuates, it tells matter where to go and matter tells it how to curve, remember? Empty space, on the other hand, is primary. You see, there is empty space and then there is material space, a mix of ZPR and CMBR particles. Einstein' spacetime is packed full of photons, that is where Inflation, the time cone, the time arrow, the Big Bang, 'false vacuum', etc., all come from. This why we now say space is grainy.
Locality, in spacetime, is a relation. Objects are relative to other objects, not to empty space.
The field is not to be seen as the ultimate irreducible reality, empty space is. But information starts with the field... with first quantum of action.
When we think about empty space we should stay away from notions that imply motion. Terms like infinity or velocity, size or duration... are not applicable. In this realm, we must think in terms of state, not in terms of process. Process happens in spacetime.
Because the aether is not composed of parts that follow a time line and the idea of motion is not applicable, we can safely say that the aether is one. Because it is one, there is no need for motion, there is no space or distance to cover, this is where non-locality and EPR phenomena come from. State, not knowledge, is registered throughout the Universe instantaneously, Mach was right."
Source https://www.physicsforums.com/threads/the-classical-aether-vs-the-modern-vacuum.187117/page-3
Do you agree with the first sentence above that "Like Einstein said, there is no absolute space, space is an extension of matter."? This is a good punchline, space being an extension of matter. So there must be something beside space and matter (the treatise above simply calls it "empty space". To make it not a philosophical thing. I want to know how it would behave if the more primary thing has its own forces of nature that we can access within space and matter (or mathematically within spacetime and QFT). Are there arxiv theoretical physicists who dig this or none of them write such?
I know "empty space" and "aether" can be seed for mass confusion. So let's not discuss them especially the latter. But maybe refer it to "the unname". In the same thread. It concludes with
"
This notion of a primordial substance is a very old one, also known as Akasha or Brahman, and many times described as pure energy or spiritual fire. It has been anthropomorphized by man since the times of Plato and Aristotle, the Chaldeans and the Akkadians. It has been called by the names of Zeus, Jupiter, Brahma and other.
We are talking about a notion, not just a word."
Source https://www.physicsforums.com/threads/the-classical-aether-vs-the-modern-vacuum.187117/page-3
That's right. Let's not fight over a word, so just refer it as the "unname" (behind space and matter).