Dear Whittier,

You are confusing coordinates with spacetime. Einstein made it clear that space is real when his Theory of General Relativity predicted that the force of gravity can be replaced by geometric variations of flat space. That leaves open the question of whether time ia a real dimension or just a representation. Time certainly exists but it may not be a dimension.

LQG has further soldidfied the real existence of space by proving that it is quantized and independent of coordinate system. That is, the spin network that underlies space and time do not have apriori location in space. Location is derived from the network, as well as time.

Scientific American has a very readable account of LQG by Lee Smolin. A more advanced discussion can be found in the link I provided to Edge.com on the Big Bang Forum.

Wanda

• You tell me I'm "confusing" it -- here's how I'm not - quiet - December 24, 2003 - 18:00 UTC
  • Please tell me what you mean about "spacetime" - quiet - December 24, 2003 - 20:50 UTC
    • Still confused - wandaqueen - December 24, 2003 - 22:22 UTC
      • You did not answer my 3 questions and propounded patronizingly - quiet - December 24, 2003 - 23:27 UTC
        • Why should she answer your questions - secretary - December 25, 2003 - 17:37 UTC
          • Secretary has no credibility with me at all - quiet - December 25, 2003 - 20:10 UTC
            • Here is the abswer to your every question - wandaqueen - December 26, 2003 - 00:12 UTC
              • I love you lots xxxxx, Wanda Queen, Honestly in Reverence - quiet - December 27, 2003 - 20:13 UTC
        • Here is the answer to your every question - wandaqueen - December 26, 2003 - 00:17 UTC
          • Man, did you just accuse me of plagiarism? - quiet - December 26, 2003 - 01:20 UTC
      • Okay Sweetie, Dear WandaQueen - quiet - December 25, 2003 - 07:27 UTC
      • Unconfused but thanks for asking - quiet - December 25, 2003 - 07:46 UTC
        • Stupid Reason did not read far enough - secretary - December 28, 2003 - 11:29 UTC
          • That is poorly explained by you! - quiet - December 28, 2003 - 21:28 UTC
            • You cannot admit saying something stupid - secretary - December 29, 2003 - 01:19 UTC
              • I can admit that you did; but it seems unnecessary - quiet - December 29, 2003 - 04:56 UTC
                • Nobody wants to discuss anything with you - secretary - December 29, 2003 - 05:12 UTC
                  • Thank you for your interest - kantolfir2 - December 29, 2003 - 06:15 UTC