Admittedly, we do not know how it that anything (such as a physical universe) exists, let alone exactly how it came about that life came into existence. It is often suggested that there must be a God since it is impossible for anything to come into existence spontaneously through "self-creation" and equally impossible that anything existed forever in the past. Regardless of how elementary the very first particle of matter (or energy) and regardless how long ago it first emerged, it must have come from somewhere and through some process.

In the minds of many people, the only logical explanation for the existence of the universe and (especially) of life is that it must have been created by a God. However, there are serious logical problems with that belief. First, it necessarily relies on completely circular reasoning: either spontaneous existence from nothing is possible or it is impossible; it cannot...
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