These are excerpts and elaborations from my book "The Nature of Consciousness"
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Time: When? On closer
inspection, the main subject of Thermodynamics, Relativity and Quantum theories
may well be Time. Most of the bizarre
implications of those theories are things that either happen "in
time" or are caused by Time. Boltzmann interpreted the second law of Thermodynamics (that entropy can never
decrease) as basically a definition of time, and, de facto, an unmasking of
time as an illusion of being alive in a particular time and place. Boltzmann
reasoned that the illusion of time is due to the processes of change that we
observe. Those processes (especially the most visible ones, such as decay) are
driven by the second law of Thermodynamics, which he had proved to be a
statistical law of transition from less probable states to more probable
states. Thus a living being feels the flow of time only because it lives in a
world that is transitioning from a less probable state to a more probable
state. If life is possible in states of absolute equilibrium, then those living
beings would not perceive any flow of time. Relativity
turned Time into one of several dimensions, mildly different from the others
but basically very similar to the others. This clearly contrasts with our
perception of Time as being utterly distinct from space. Hawking, for example,
thinks that originally Time may have just been a fourth spatial dimension, then
gradually morphed into a different type of dimension and, at the Big Bang, it
became Time as we know it today. The
mathematician Hermann Bondi has argued that the roles of Time are utterly different in a
deterministic and in a non-deterministic universe. Whereas in a deterministic
universe, Time is a mere coordinate, in a universe characterized by
indeterminacy, such as one governed by Quantum Theory, the passage of time
transforms probabilities into actualities, possibility into reality. If Time
did not flow, nothing would ever be. Things would be trapped in the limbo of
wave functions. The Australian
physicist Paul Davies claims exactly the opposite: Time is rather
meaningless in the context of a quantum model of the universe, because a
general quantum state of the universe has no well-defined time. With Hawking,
Time may not have existed before the Big Bang, and may have originated
afterwards by mere accident. Back to the beginning of the chapter "The New Physics" | Back to the index of all chapters |
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