As atheistic astronomer Chet Raymo describes, the odds of the space-energy density constant being so precise just moments after the Big Bang are 1 x 10^15 (that's a one with 15 zeroes after it). If the space-energy density constant had fluctuated by more than one part in 1 x 10^15, carbon-based life would not exist in this universe. As Raymo describes it, "The coin was flipped into the air 10^15 times, and it came down on its edge but once. If all the grains of sand on all the beaches of the Earth were possible universes...and only one of those grains of sand were a universe that allowed for the existence of intelligent life, then that one grain of sand is the universe we inhabit."
The immediate notion is to dismiss probabilities, because life does exist. The very odds of us even seeing the light from the star Arcturus from earth is 1 x 10^22, but we see it, so what difference do the odds make? Large numbers do not automatically make a phenomenom miraculous.
Winning one of life's lotteries (space-energy density) is amazing enough. But to win several lotteries in a row by chance, without ever losing, borders on absurdity. Numerically speaking, the relations between the gravitational constant, the mass of the proton, the electromagnetic constant, and the age of the universe that can support carbon-based life only hold for a very small epoch of time (millions of years), so it appears coincidental from our vantage point that we are even around to observe this phenomenom. If they had come together at any other epoch of the universe's history, we would not be around to observe them. We are very fortunate! Add to this that carbon-based life is far more inhabitable in a G-class star (fully 75% of all stars are uninhabitable M-class stars), on a rocky planet (most planets are gaseous), and 17 other planet-specific characteristics that must be within a certain, but not too improbable, range in order for carbon-based life to exist.
String theorists like Leonard Susskind acknowledge that accepting that this current universe formed by chance is bordering on absurd, and so they incorporate the multiverse theory along with String Theory. In fact, Stephen Weinberg notes that the Anthropic Principle, applied to String theory, "may explain how the constants of nature that we observe can take values suitable for life without being fine-tuned by a benevolent creator."
Like I said, hitting one of life's lotteries is not miraculous, no matter how large the number. But hitting all of them, without losing even once...it begs the following questions:
- Could a reasonable human being conclude that the current universe formed by chance, and that there are no other universes? Or is multiverse theory a necessity to explain the current universe and still accept chance?
- Would we ever even theorize of multiverse theory if it wasn't so improbable that carbon-based life could exist by chance in this universe?
- Since it is physically impossible to test, observe, or verify either multiverse theory or God, why does the former qualify as science, while the other is qualified as faith?
- Not to invoke philosophy in a science forum, but using the watchmaker argument for design argument, at what point does a probability become too absurd to accept that it happened by chance? At what range of probabilities, must one conclude that something was designed?