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Can anyone tell me what is timelike vector and what is spacelike vecor?

I read the in a doc for spacelike vector :

For events with spacelike separation, |(x,t)| is called the proper distance between them; an observer who judges them to have happened simultaneously measures t = 0, so |(x,t)| = x.

In the same doc for timelike vector it is written that

For events with timelike separation, |(x,t)| is called the proper time between them; an observer who judges them to have happened at the same place measures x = 0, so |(x,t)| = t.

Can anyone tell me what do these two descriptions mean?

I really didnt understand it, explaining this will help me moving further on this

Thanks in anticipation

Abhishek Jain

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# Explain spacetime geometry

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