Humankind's greatest inventions: - Wheel - Calculus - Microelectronics - Luggage on wheels Why did the last one take so long!?
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Weird — fire, agriculture, tools, logic, and metallurgy don't even make the list?
If we "invented" fire than we also invented opposable thumbs. :) But yes I hear you, each such list is horribly incomplete.
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We're just lucky that cats _didn't_ invent opposable thumbs.
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or fire.
End of conversation
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