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Teo_Filin t1_jb1o0zq wrote

Reply to comment by PercussiveRussel in Does the age of the universe depends on where you are? by _bidooflr_

Cool! So no way for instant info exchange? Such a pity.

Though I can't accept "information" as physical measure at macro-level (it's our description of some properties), just at quantum-level (numbers defining a particle).

I even doubt that time is a coordinate meaning some "future" and "past" do exist as places we can visit (present is real with some intensity of processes influenced by gravity and speed; future is our anticipation, past is our memory).

I'm not deep in advanced physics and higher mathematics, just evolving my perception and checking cosmology with common sense sometimes.

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PercussiveRussel t1_jb240js wrote

>So no way for instant info exchange?

Reddit was being reddit, so while I could see your reply in my replies, I couldn't find it to reply to. Reply.

I've added a bit at the bottom of my post to explain why. This isn't just aimed at you, I don't know your understanding of quantum mechanics, but I notice that entanglement is a pretty misunderstood topic. And to be honest, actual quantum researchers talking calling their incredibly cutting edge cool research "quantum teleportation" isn't exactly helping this.

Not accepting or even understanding information at a macro level is perfectly understandable. I'm a physicist and I can't marry my knowledge of quantum with the macro world, I don't understand "information" as a quantum concept in macro scale either. (to be honest, I don't think I fully accept "energy" on the various scales)

I think the most simple way to accept "the speed of information" is to just imagine someone transmitting "Hello world", with laser beams through the vacuum of outer space. Since we know that the speed of light is finite, and furthermore light is the fastest thing in the world, no message can get to us faster than a message sent with light. There are lots of caveats to this of course (there always are), but this conceptually at least made sense to me when I first started to learn about this. Once you start to trust this concept, just flip it on its head: the speed of information is 3.00e8 m/s, so there is no way light is faster than information.

(this is a way to get to grips with the concept, this is in no way a proof nor meant as such)

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