"As Molly points out, one invention led to another at an ever increasing rate."
Actually, I pointed this out first. It's one of my main points in this thread. If modern Western civilization has contributed a disproportion of advances, it's mainly because the greatest portion of those advances inevitably are recent, and Western civilization has recently dominated economically and militarily.
"Leonardo was employed to "invent." Did such a thing ever happen before?"
It's possible that no one had ever been given that job title before, but certainly it happened. One of Diamond's theses is that advances happen because food production allows population growth. which allows specialization, which leads to invention. And again, you can't invent advanced things before a period in history when simpler things have already been invented.
Actually, I pointed this out first. It's one of my main points in this thread. If modern Western civilization has contributed a disproportion of advances, it's mainly because the greatest portion of those advances inevitably are recent, and Western civilization has recently dominated economically and militarily.
"Leonardo was employed to "invent." Did such a thing ever happen before?"
It's possible that no one had ever been given that job title before, but certainly it happened. One of Diamond's theses is that advances happen because food production allows population growth. which allows specialization, which leads to invention. And again, you can't invent advanced things before a period in history when simpler things have already been invented.
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