system
Given the following post, respond as if you're commenting on Reddit:
human
What is space made of?

That is to say, is the concept of field in physics merely one of intuitional convenience? Fields strike me as almost the same as aether. A magnetic field permeates space, but without relying on intuition, what is space? Is it merely that which contains fields?
gpt
The problem is the question.

Space is nothing, by itself.

With the dimension of time, it become a 4D "fabric"

fabric is just the idea that space and time is connected so that waves pass through it, and can affect each other. A means of seeing something that isn't necessarily there that isn't detectable by humans, except in our Newtonian world.

There may be some kinda of universe structure that determines the speed of light, maybe it's relative to the size the universe if it isn't unlimited.

Light and other particles/waves is just a distortion, the twisting of space over time

There isn't a means of knowing what the reality really is so with any science intuition is key, as you get smaller and smaller it gets harder and harder to make sense of any of it, as ideas and or theories start compounding.