(August 15, 2015 at 11:15 pm)excitedpenguin Wrote:(August 15, 2015 at 11:04 pm)AFTT47 Wrote: Think of a street address. If I want to meet you, I need to specify not only a 3-dimensional location but one of a time, also. If the time doesn't match up, we won't see each other.
How does that enter physics since this seems to be so entrenched in human affairs that it doesn't necessarily arise from that that we might use it to describe the way the cosmos works?
Are you kidding? The same applies to any two objects. If they are to meet, they need to be in the same 3-dimensional space at the same time. If they are a million years apart, they will probably be separated by a large amount of space also, depending on their motion. It's nothing unique to humans at all.
Only two things are infinite, the universe and human stupidity, and I'm not sure about the former.
Albert Einstein
Albert Einstein
