A universe that expands relative to the observer

[Nick Astraeus]

The game of fundamental physics is to derive as much as possible from the fewest and simplest propositions.

In the spirit of that game, here is a series of 60-second arguments, in which I address some of the major problems of modern physics, working from these two basic propositions:

(1) the universe expands relative to the observer
(2) there are multiple observers

Skepticism about one or all of these arguments is, of course, fine. But keep in mind that, in the context of this game, the ultimate measure of success is whether a single model can unite and explain the seemingly disparate problems of modern physics.

Foundations of quantum mechanics, part 1, the double slit experiment:

View: https://youtube.com/shorts/SSfHNhIlY54

Foundations of quantum mechanics, part 2, the uncertainty principle:

View: https://youtube.com/shorts/ftfhClZu8d4

Dark energy:

View: https://youtube.com/shorts/x7GrPLdjaRc

The vacuum catastrophe:

View: https://youtube.com/shorts/Ka2sQH-jxmE

 

[marcin]

Dark energy:

View: https://youtube.com/shorts/x7GrPLdjaRc

Do the observable universes need light to be observable? Do they need it to exert negative pressure on each other or can they expand without it?

I commented your short on the same topic on yt. If your observable universes need light, then we have a common ground.

 

[Fire-Starter James]

There are three basic ways to observe an object:

1. You throw stuff at the object that causes it to throw stuff at you.
2. Something else throws stuff at the object that causes it to throw stuff at you.
3. The object just throws stuff at you.
The stuff does not have to be light. It could be something else.

More later. Your two basic premises are sound, solid ground.

 

[Fire-Starter James]

I love the "personal universe bubbles". They're a great image of how Newtonian expansion works. Let's add it as a third proposition:

(1) the universe expands relative to the observer
(2) there are multiple observers
(3) the universe expands in a Newtonian manner, that is, x times the distance means x times the speed.

Now composing offline.

 

[Fire-Starter James]

(1) the universe expands relative to the observer
(2) there are multiple observers
(3) the universe expands in a Newtonian manner, that is, x times the distance means x times the speed.

Imagine I'm immortal, and my two immortal friends, Alice and Cooper, live in opposite directions from me. We all stay in touch, because our personal universes all overlap each other's centers, and since we're are all immortal, we don't care how long the mail takes even at the speed of light.

Then one day, the cosmic expansion takes Alice and Cooper out of each other's personal universes, even though their bubbles still include my center. Alice is crying at me because Cooper doesn't send her love letters any more, and Cooper is asking me if Alice has been kidnapped or something.

So I relayed their messages to each other. Which should be impossible.

This contradiction shows premise (3) to be false.

 

[Fire-Starter James]

Let's define function V(r) as the recessional speed due to cosmic expansion at distance r.

In Newtonian expansion, V(r) = Hr, which leads to that contradiction in causal connections. How can A and C be causally disconnected, and both still causally connected to B? Not.

In Relativistic expansion, our "personal universe bubbles" are all equal in size to the entire infinite universe. Now we can have an infinite number of observers, all observing the entire infinite universe.

Instead of seeing galaxies disappear into the darkness of a "red limit" event horizon, now we see giant supermassive galaxies apparently flattening into a spherical neutronium wall that surrounds us, just this side of what looks like an event horizon that has no "other side". Wherever we may be, we can't get there from here. Like chasing a rainbow, we can't ever get closer to it. Because it's not a thing, it's a mirage.

It's the projection of an infinite universe compressed into a finite virtual space.

 

[Gibsense]

Imagine I'm immortal, and my two immortal friends, Alice and Cooper, live in opposite directions from me. We all stay in touch, because our personal universes all overlap each other's centers, and since we're are all immortal, we don't care how long the mail takes even at the speed of light.

Then one day, the cosmic expansion takes Alice and Cooper out of each other's personal universes, even though their bubbles still include my center. Alice is crying at me because Cooper doesn't send her love letters any more, and Cooper is asking me if Alice has been kidnapped or something.

So I relayed their messages to each other. Which should be impossible.

This contradiction shows premise (3) to be false.

FSJ has come up with a way to exceed the speed of light ! It is by relay. From now on we know all we have to do is introduce thousands of relay points and there we have it: near instantaneous travel. And we can stay mortal!
FSJ proposes that by adding two distances, we can reduce the total. Overlap 'observed universes,' and we can have a ball. Sorry, FSJ, to take the mickey, but your posts seem to be straightforward deceptions. If this is not the case, I will apologise upfront. The idea that introducing a relay point somehow either reduces distance or speeds up light is plain er, what? Daft? Alice will cry forever.

We need a Watch Tower or two .
Maybe we can have fun and fire up some good schemes; each of us has our own bubble overlapping everyone else's, then that must explain telepathy. Oh, er, maybe not

 

[Fire-Starter James]

FSJ has come up with a way to exceed the speed of light ! It is by relay. From now on we know all we have to do is introduce thousands of relay points and there we have it: near instantaneous travel. And we can stay mortal!
FSJ proposes that by adding two distances, we can reduce the total. Overlap 'observed universes,' and we can have a ball. Sorry, FSJ, to take the mickey, but your posts seem to be straightforward deceptions. If this is not the case, I will apologise upfront. The idea that introducing a relay point somehow either reduces distance or speeds up light is plain er, what? Daft? Alice will cry forever.

We need a Watch Tower or two .
Maybe we can have fun and fire up some good schemes; each of us has our own bubble overlapping everyone else's, then that must explain telepathy. Oh, er, maybe not

The relay works when the "straight" line won't. This points out a contradiction of premises. In this case, I'm saying to NO to the premise that parts of the universe could have a relative motion greater than c. It leads to a logical contradiction — the one you found so amusing.

I don't understand the reference to a Watch Tower.

 

[Fire-Starter James]

Oh! the Gondor-Rohan bridge!