Watch how to turn obsidian into a razor-sharp blade

There are tons of excellent videos made by people with real knapping skills. Why do you insist on promoting a half-assed POS by a greenhorn with miniscule knowledge, less insight and no skill?

ISTR that Bernal Diaz was impressed with how sharp obsidian swords were. But not impressed enough to switch from steel ones, perhaps because steel is significantly more durable.

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