Comments by "Michael Deierhoi" (@michaeldeierhoi4096) on "Why I Don’t Believe in a Lost Advanced Civilization...Yet" video.

Thanks for this rational explanation as to why we are not seeing any signs of the so called lost civilizations or advanced societies that mysteriously disappeared 12,000 years ago because of some cataclysm. Your video validates in more specific terms what I have felt for many years.
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