10-06-2010, 11:28 PM
I recently read an interesting essay by the physicist Roger Penrose (one of the truly great physicists of today - and not one of those second rate pseudo-scientists who claim to be). It described his Conformal Cyclic Cosmology theory. I won't bother you with the details of this theory (you can google them if you are interested and can handle the math), but just wanted to give some of the interesting ideas found within.
The theory looks at the very early stages of the universe (the so-called "big-bang") where everything is packed into a very space hot area, and at the distant future when everything has coalesced into cold black holes spread extremely far apart. These two extremes seem to be as different as different can be, but he shows that in a very profound mathematical and physical sense they are effectively identical. Because of this identity one could consider one extreme as being continuous with the other (or another). That is, the infinitely spread-out cold universe of the infinite future is the super hot infinitely dense singularity of the next big bang.
While the math is rather advanced (at least the ideas underlying them), the intuition is surprisingly simple and has to do with the properties of light. At the moment of the big bang every thing is essentially light or gravitons. In the far future, after all the black holes have evaporated (due to Hawking radiation) there will only be photons (light) and gravitons (gravity waves). That is the first key idea. The second key idea is that there is no way to measure the passage of time with only photons (or gravitons). For a photon there is no time, all times are the same to it. This means that an infinite time is nothing to it. This is what allows the connection between the infinite time in the future and the next big bang to make sense (for a physicist!), and is also where the "conformal" term comes in. Basically the conformal aspect means that you can scale the universe in time and space so that even an infinite space and time can be squished down to a point without changing the local physical laws.
How does this relate to the LOO? It is because the cyclical nature of the universe described by this theory are reminiscent of the octaves mentioned by Ra. There is room in the theory for the laws of physics to change in crossing over from infinite future to the next big-bang.
Anyways, this theory is quite thought-provoking and I encourage any of you that are up on math and physics and recent theories of cosmology to check it out.
The theory looks at the very early stages of the universe (the so-called "big-bang") where everything is packed into a very space hot area, and at the distant future when everything has coalesced into cold black holes spread extremely far apart. These two extremes seem to be as different as different can be, but he shows that in a very profound mathematical and physical sense they are effectively identical. Because of this identity one could consider one extreme as being continuous with the other (or another). That is, the infinitely spread-out cold universe of the infinite future is the super hot infinitely dense singularity of the next big bang.
While the math is rather advanced (at least the ideas underlying them), the intuition is surprisingly simple and has to do with the properties of light. At the moment of the big bang every thing is essentially light or gravitons. In the far future, after all the black holes have evaporated (due to Hawking radiation) there will only be photons (light) and gravitons (gravity waves). That is the first key idea. The second key idea is that there is no way to measure the passage of time with only photons (or gravitons). For a photon there is no time, all times are the same to it. This means that an infinite time is nothing to it. This is what allows the connection between the infinite time in the future and the next big bang to make sense (for a physicist!), and is also where the "conformal" term comes in. Basically the conformal aspect means that you can scale the universe in time and space so that even an infinite space and time can be squished down to a point without changing the local physical laws.
How does this relate to the LOO? It is because the cyclical nature of the universe described by this theory are reminiscent of the octaves mentioned by Ra. There is room in the theory for the laws of physics to change in crossing over from infinite future to the next big-bang.
Anyways, this theory is quite thought-provoking and I encourage any of you that are up on math and physics and recent theories of cosmology to check it out.