Here are some notes I made some time ago on the Fine-Tuning argument. From memory, some of the ideas came from Richard Carrier in Sense and Goodness Without God. The argument looks like this (wiki):

The fine-tuned Universe is the proposition that the conditions that allow life in the Universe can only occur when certain universal fundamental physical constants lie within a very narrow range, so that if any of several fundamental constants were only slightly different, the Universe would be unl...
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