> Let’s assume we can literally communicate over any distance instantly. Do we come across as a bit slow to anyone orbiting star S62?
Communicating "instantly" would be a paradox.
Remember there is no absolute reference to which speeds are measured, aka. a "luminiferous aether". Its existence was disproved in the 19th century.
So Earthers are slow for observers on that star, but inhabitants of that star are also slow for Earthers; because speed is relative. Hence the name relativity.
And the reason it doesn't result in a paradox with light-speed communication is that the increasing (resp. decreasing) latency between the two account for the increasing (resp. decreasing) difference of time caused by this discrepancy of an object speeding up away from (resp. toward) the other.
Communicating "instantly" would be a paradox.
Remember there is no absolute reference to which speeds are measured, aka. a "luminiferous aether". Its existence was disproved in the 19th century.
So Earthers are slow for observers on that star, but inhabitants of that star are also slow for Earthers; because speed is relative. Hence the name relativity.
And the reason it doesn't result in a paradox with light-speed communication is that the increasing (resp. decreasing) latency between the two account for the increasing (resp. decreasing) difference of time caused by this discrepancy of an object speeding up away from (resp. toward) the other.