Just looks like a sharp rock to me. How do we know this is hominid-made? | Hacker News

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		nly on Jan 25, 2023 \| parent \| context \| favorite \| on: 1.2M-Year-Old Obsidian Axe Factory Found in Ethiop... Just looks like a sharp rock to me. How do we know this is hominid-made?

20after4 on Jan 25, 2023 [–]

If you look at a lot of these artifacts you can easily recognize the telltale markings and intentionally manufactured shapes.

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