There are three alternative explanation of anthropic coincidence that Barr states, but only goes into detail with the first two alternative explanation: 1) They are just coincidences, pure and simple, 2) Anthropic coincidences have a purely natural, scientific explanation, 3) Anthropic coincidences show that we were deliberately ‘built in from the beginning’ by God. The first alternative explanation can never be ruled out, because even if there was a mountain of evidence in favor of or against this coincidence there will always be those to argue for either position.
Alternative two is in itself reducible to coincidence. Does the earth no orbit the sun in such a way that it is never too close to burn-up and never so far away to freeze solid. The diameter, dimensions, and rotation of the earth just slight off center gives just the right amount of gravitational push and pull that it is consistent with organic life to develop and thrive. All these aspects of nature can be explained by science and at the same time can be considered anthropic coincidences. Barr takes this concept even deeper discussing multiple dimensions within our universe and multiple universes act completely independent from each other. Barr leans more toward the theory of multiple dimensions within the same universe, but believes that these universes are beyond the reach of each other. These are only theories and something to consider when think about creation, evolution, humanity, and