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Do Anthropic Coincidences Require Explanation

Do Anthropic Coincidences Require Explanation - Do...

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Do Anthropic Coincidences Require Explanation? What are the Coincidences? The existence of "anthropic coincidences" was first discovered in the early 1970's by cosmologist Branden Carter. Since that time, the list of coincidences has grown dramatically. An anthropic coincidence consists of some feature of the laws of nature, the fundamental constituents of matter, or the initial condition of the universe that had to take a value within some interval in order for life (and hence, for human observers) to exist at all. These coincidences can be grouped into several categories: (i) features of the fundamental laws of nature, including the relative strengths of fundamental forces and other physical constants, (ii) characteristics of the fundamental particles of matter, (iii) the size, degree of flatness and smoothness, and rate of expansion of matter emerging from the big bang. and (iv) features of the solar system and of the earth. (The fourth category could be considered a separate sort of coincidence, since it refers to unlikelihood of even one planet as suited for life as is the earth to come into being. Unlike the other coincidences, it does not refer to universal features of the cosmos.)
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