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AngerGuides t1_iydmjrk wrote

The sharpest knife in existence is useless...because it is obviously not being used.

That said, obsidian shards are SUPER sharp and can be used as knives, I guarantee there are many people out there with shards of obsidian that have super-fine cutting edges.

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rat4204 t1_iydoqbu wrote

Aren't surgical blades made of obsidian or did I dream that?

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Emperor_Cartagia t1_iydt7si wrote

Some are, but they're only good for like 5 to 10 cuts then they're useless.

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