Language, Axe, Wheel, Coffee, Beer, Printing Press, iPhone. Inventions or discoveries that change the world have the common thread of usefulness and suitabilit

Language, Axe, Wheel, Coffee, Beer, Printing Press, iPhone. Inventions or discoveries that change the world have the common thread of usefulness and suitability. Thinking historically is pretty, it's hard to weed out bad ideas this way. AI is an idea like a "wood cutting implement" is an idea, but it's still no axe.