According to GR, the future already exist?

  • #1

Main Question or Discussion Point

or not
 

Answers and Replies

  • #2
336
0
I'm afraid I don't understand what you mean by 'future exists'.
If you mean to ask whether future is predetermined, any deterministic theory will answer is in the affirmative.
Also, each observer experiences only his present in his frame of reference :tongue2: ! Two observers mayn't agree on the temporal order of events,though.
 
  • #3
5,601
39
no not really....but it does depend on what you mean. generally speaking relativity is a classical theory and is therefore deterministic, but what that means is also debatable.

you can see a diagram via SPECIAL RELATIVTY that shows the "future" via a light cone....

Or maybe you are thinking of determinism:

http://en.wikipedia.org/wiki/Determinism

which could mean that IF we knew every initial condition now then the future might be predetermined...but that conflicts directly with a lot quantum mechanics....
 
  • #5
Matterwave
Science Advisor
Gold Member
3,965
326
I'm not 100% on this, but I think the OP is more talking about whether general relativity allows time travel to the future ala science fiction (think Doc Brown going to see Marty's children).
 

Related Threads for: According to GR, the future already exist?

Replies
5
Views
3K
  • Last Post
Replies
13
Views
3K
Replies
7
Views
2K
Replies
36
Views
27K
Replies
2
Views
659
Replies
12
Views
2K
Replies
3
Views
590
  • Last Post
Replies
13
Views
2K
Top