Miguel writes:
But why are so many properties of the universe fine-tuned for life?
Besides the various arguments already raised by others to this form of reasoning I would find it far more convincing if life existed despite evidence that it is impossible for it to exist.
The fact that life exists in a universe that seems to be suited to life is not all that impressive.
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He hoped and prayed that there wasn't an afterlife. Then he realized there was a contradiction involved here and merely hoped that there wasn't an afterlife.
- Douglas Adams, The Hitch Hiker's Guide to the Galaxy