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Author Topic:   What is Time and Space
GDR
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Posts: 6202
From: Sidney, BC, Canada
Joined: 05-22-2005
Member Rating: 2.1


Message 199 of 204 (354052)
10-04-2006 12:03 AM
Reply to: Message 187 by cavediver
09-08-2006 3:23 PM


Re: Time
GDR writes:
When you say in the last sentence "our universe" are you speaking about a universe that is the one that all of us experience?
cavediver writes:
Could be, or perhaps individualistic... the model's not sufficiently well defined on that point! Take you pick...
I’m still trying to put all of this together conceptually and particularly the idea of an individualistic universe.
-Penrose proposes that consciousness is basic to everything.
-Barbour believes that every moment is an eternal universe.
-Others talk about an infinite number of universes
-SR tells us that space/time is absolute and that we all move through time at our own individual rate.
-QM has shown us that nothing is as it appears and that what seems to be reality is in fact only our perception of it, and that in order for particles, (which are only bits of energy or information), to take on their characteristics they require an observer.
If all of these things are correct, (I know that the first three are still pretty esoteric and pretty speculative), then it seems to me that some things follow.
If the movement through time is an individual thing for each of us(SR), and if a universe is a specific moment in time (Barbour) then every individual exists in their own universe that is dependent on their own consciousness, (Penrose & QM) which would require an infinite number of universes.
Does this make any sense at all?
Edited by GDR, : No reason given.

Everybody is entitled to my opinion.

This message is a reply to:
 Message 187 by cavediver, posted 09-08-2006 3:23 PM cavediver has not replied

  
GDR
Member
Posts: 6202
From: Sidney, BC, Canada
Joined: 05-22-2005
Member Rating: 2.1


Message 200 of 204 (385628)
02-16-2007 1:25 PM


Does time even exist
Julian Barbour as I understand it contends that time as such doesn't even exist but is only the way that we perceive change. Here is a link to a site that includes a discussion with Barbour and a review of his book.
Julian Barbour
Amongst the many things that I don't understand in all of this is how his picture of how time represents change is consistent with GR which shows that time, (as represented by change) is different for each one of us.
I'd be interested in how others feel about this particular theory of time.

Everybody is entitled to my opinion.

  
GDR
Member
Posts: 6202
From: Sidney, BC, Canada
Joined: 05-22-2005
Member Rating: 2.1


Message 204 of 204 (642907)
12-02-2011 2:56 PM


A Course in Time
I have been enjoying the thread on "Time and Beginning to Exist" and I remembered a number of years ago starting this thread and how helpful so many were to me in getting my head around time and space. There are some excellent teachers around here and so I thought it might be interesting to bring this forward for those who are interested.
(Just ignore my own rather inane postings. I mean well.)

Everybody is entitled to my opinion.

  
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