5 ms·
Today it is. My point is if a ship goes on an 80 year journey at an appreciable speed then its wall clock will disagree by an appreciable amount. If we have h
by willis936 5y ago
Today it is. My point is if a ship goes on an 80 year journey at an appreciable speed then its wall clock will disagree by an appreciable amount. If we have hundreds or thousands of such ships and they communicate with each other, someone will need to choose what clock they care about and it won't be the Earth's clock.
- Dylan16807 5y agoWell I meant the real you/me. Not a hypothetical spaceman. Anyone on Earth can just say their computer clocks are set to "Earth", ignore relativity, and use their normal clock skew correction algorithms. It's not "You can't escape answering the question". It's "Interplanetary spacemen can't escape answering the question." And those spacemen might not even use seconds.