Comments by "michael" (@michaeld4861) on "The Explosive Element That Changed The World" video.

@Seriouslydave Things change. Territorial disputes, disease outbreaks, drought, to find easier and more consistent food sources. Before farming people had to rely on what they could find, not what they could grow. Perhaps populations grow and therefore require some to move out in order to support themselves. Weather conditions change. Perhaps they hunted to local animals to extinction (like with the wooly mammoth). Perhaps curiosity. Etc. Etc.
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