I How meaningful is the notion of now here on Earth?

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TL;DR Summary
Is it meaningful to ask what say, my friend is doing in London when I am in New York?
So, not looking for anything over complicated. Just been picking up some special relativity.

How meaningful is the notion of now here on Earth? Is special relativity worth even considering for day to day interactions with others?
 
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EclogiteFacies said:
TL;DR Summary: Is it meaningful to ask what say, my friend is doing in London when I am in New York?
Do you have their phone number? Pick up your phone and ask them. That’s what “now” means in ordinary English.
Is special relativity worth even considering for day to day interactions with others?
No.

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