One of my favourite quotes of all time is "What we do in life echoes in eternity." This phrase is not only true in the deep meaning of our choices, but also in their causality and imminent observation by beings far away and with greater technology.

Okay, so let's say there was a stoplight, which starts off in its shelf state, which is OFF. After one year it turns GREEN, after 2 years it turns YELLOW, and after 3 years it turns RED.

Now let's say there were four people, each with their own superpowered telescope. PERSON 0 stands next to the stoplight, PERSON 1 stands one lightyear away from the stoplight, PERSON 2 is two lightyears away, and PERSON 3 is three lightyears away.

Begin experiment. Zero time has passed. Relative to the stoplight, everyone sees the same thing - a dead light.

One year passes. PERSON 0 now sees a green stoplight. The other three see a dead stoplight.

Two years pass. PERSON 0 sees a yellow stoplight, PERSON 1 sees a green stoplight, PERSON 2 AND 3 see a dead stoplight.

Three years pass. PERSON 0 sees a red stoplight. PERSON 1 sees a yellow stoplight. PERSON 2 sees a green stoplight. PERSON 3 still only sees a dead stoplight.

What PERSON 0 observed at the start was the same as what PERSON 1 observed after one year - the only thing that was different between them was their position in spacetime.

If one thinks of light strictly as information - then the information is the same in two places, one year later. At first thought, the only limiting factor to how far the light can be observed over time is how good of a telescope we have.

But what if the stoplight was in a closet? PERSON 0 wouldn't have a problem seeing the light change, but PERSON 1 could never see the light change since he is out of the closet. PERSON 1 would never know what color the light was, unless the closet were to open - like with Schrodinger's Cat.

EXPERIMENT EXTENDED:

Year 1. PERSON 0 is in a closet with the stoplight, which changes at the same times as in the previous experiment. PERSON 1 is one lightyear away, outside of the closet.

This time, PERSON 1 now has an electric button with a long wire that opens the closet door remotely.

One year passes. PERSON 0 sees a green light. PERSON 1 sees a closed door, no spotlight, and decides to press the normal button.

Two years pass. PERSON 0 sees a yellow light, and feels the door open behind him. PERSON 1 still sees a closed closet door.

Three years pass. PERSON 0 sees a red light. PERSON 1 sees the closet door has opened with a yellow light.

This experiment shows that electrical current can only travel as fast or slightly as fast as light. For PERSON 1 to send a signal AND observe an event, took two years.

Now for the last experiment, where it gets very trippy. PERSON 1 is still one lightyear away. This time, PERSON 1 has an FTL signalling button (faster than light). PERSON 0 is still in the closet, but this time there is an FTL camera directly linked to a monitor next to PERSON 1.

One year passes. PERSON 0 sees the light turn green, and feels a draft as the closet door opens behind him. PERSON 0 uses his telescope to look at PERSON 1, and to his confusion, sees he didn't push the button yet. PERSON 1 observes his finger down on the button, yet still sees a closed door - but when he looks at the monitor, sees an open closet door with a green stoplight.

Two years pass. PERSON 0 is staring at the directly at the light turn yellow. PERSON 1 sees the closet door suddenly reveal a green stoplight, with PERSON 0 staring at him through a telescope. In the monitor, PERSON 1 sees a yellow stoplight.

By sending a signal faster than light, a time paradox was created, yet everything continued as if it were normal.

In this experiment, PERSON 1 is seeing two different events happening at the same place by exploiting faster than light technology.

My understanding of quantum physics isn't great - my question is does it have any relevance to the above experiments? Does it demonstrate superposition, entanglement etc.?