Edwin Hubble was "horrified" ---his word not mine, that the red-shift meant the Heavens were being stretched out from a very particular place--- the Earth.
As Fred Hoyle says " . . the startling conclusion that the galaxies are moving away from us. And what is more, the greater the distance of a galaxy the faster it is receding."
This is in 3-dimensional space. So we are talking of concentric spheres, or balloons which are being blown up-- the outer spheres being blown up at a faster rate than the inner spheres.
The idea that everywhere is a centre of this expansion, is a nonsense. It is geometrically impossible, unless you want to invent a hypothetical "hyperspace".
Analogies are given of dots on an expanding rubber sheet--- but how can these dots be accelerating away at a greater rate the farther you are from -any- one dot? This is logically impossible.
It is said "to give you a rough idea" of how it works, supposedly, in General Relativity. In other words it cannot be imagined in 3-dimension space, simply because it is impossible to imagine in 3-dimensions space ; it can never occur.
What is happening here, is, in order to confuse and confound the obvious-- a geometric impossibility is proposed, and then a theory which no one understands, (because it is itself logically impossible) is adverted to, to convince the reader of this impossibility.