So here’s the thing: we don’t know that, really. If we find a spear that has one side sharpened and it’s dated 40,000 bc, then we find another spear and both sides are sharpened dated 30,000 bc, it may appear that way… But we literally have a vague guess at best. If 1 million years from now an archeologist finds a kitchen knife and concludes that in the 2000’s we were still figuring out double sided knives, then they would be hilariously wrong.
Imagine how crazy it’d be if you found a way to attach a STICK to the rock and make the rock sharper…
you’re never gonna believe what my buddy Ungabung just made…
I remember at some museum they said it took about 10.000 years for pre-humans to move from sharpening one side of a stone to sharpening both sides.
We went from using sharpened stones to landing on the moon in the same timeframe.
So here’s the thing: we don’t know that, really. If we find a spear that has one side sharpened and it’s dated 40,000 bc, then we find another spear and both sides are sharpened dated 30,000 bc, it may appear that way… But we literally have a vague guess at best. If 1 million years from now an archeologist finds a kitchen knife and concludes that in the 2000’s we were still figuring out double sided knives, then they would be hilariously wrong.