A few days ago I noticed (I'm sure we all know this) that when talking on the phone you receive the messages a few seconds after it is said by the sender.
So person A says "hello" to person B.
In person A's time frame they now finished saying "hello" and it has started traveling down the telephone wires/3G to a tower to the other persons phone and it arrives (let's just say) a second later. To person A, they must wait for their message to send (1s) and return (1s). (1s is the signal propagation time for each person to get the others message)
In person B's time frame they say nothing, until they hear "Hello". So they wait 1s and hear "Hello". Then they respond back with "Hello Person A", which takes 1s to get there.
So why do telephone conversations feel like they are happening in real-time? (I know this is common sense, but I want to see it spelled out; i.e. I know the sky is blue, but why?)
Are person A and B talking NOW but the actual information exchange is happen 2*propagation time later?