Friday, May 15, 2009

Chapter 11: Parallel Universes - Class II


To grasp the thought that there are many worlds, just like Earth, takes a little bit of imagination and to many, seems too unrealistic to be true. But, if we apply the uncertainty rule to the entire universe, naturally we lead ourselves towards the concept of a multiverse.

The concept of "quantum cosmology" at first sounds like a contradiction. The quantum theory refers to the infinite miniature world of the atom, while cosmology refers to the vast entire universe. But consider this: at the instant of the big bang, the universe in its entirety was much smaller than the size of an electron. Electrons, according to every physicist must be quantized which means, described by a wave equation (the Dirac Equation) and can exist in parallel states leading to the "many worlds" approach.

Another theory, that our universe arose from the "nothingness" of the space-time foam, seems oblique to the mind, but, with simple observations, the theory seems consistent:


  1. Physicists have pointed out that the total number of positive charges and negative charges in our universe comes out to be zero. If there was an imbalance between these two charges on Earth, it may be enough to rip the Earth apart, overcoming the planet's gravitational force. Therefore, a simple way to explain why there is a perfect balance is to assume our universe came from "nothing," and "nothing" has zero charge.

  2. Our universe has zero spin. Since the total spin of the entire universe is zero, the universe must have derived from "nothing," because "nothing" has zero spin.

  3. Finally, our universe's coming from "nothing" would help to explain why the positive energy of matter and the negative energy of gravity seem to cancel out, equalling zero.

These three observations can provide us with two pieces of crucial information. By understanding the three situations, we can grasp the thought that this universe we live in once started from nothing but a bubble in space foam. It suggests that for a universe to sustain itself, it must remain symmetrical in terms of spin, positive/negative matter, and positive/negative charges. Understanding how universes form, and appreciating the uncertainty rule, we may very well be one in a series of parallel universes also possessing intelligent life.


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