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1999 : WHAT IS THE MOST IMPORTANT INVENTION IN THE PAST TWO THOUSAND YEARS? [1]

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john_allen_paulos's picture [5]
John Allen Paulos [5]
professor of mathematics at Temple University
Professor of mathematics at Temple University in Philadelphia

Thanks for your invitation (and for your project in general). I'd respond more fully but the question seems too ill-defined to answer. (I guess I still have something of the reductionistic, literal mindset of a mathematician despite periodic forays into more nebulous realms.) An invention or innovation that becomes essential has a tendency also to become invisible as we, in a sense, "grow around" it. If I were forced to name something, I guess I would go with Gutenberg's movable type. And if I wanted to be puerilely self-referential, my choice for most important invention might be the notion of a precise question. (Nevertheless, I do see the value of vague ones as well.)

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[1] https://stage.edge.org/annual-question/what-is-the-most-important-invention-in-the-past-two-thousand-years
[2] https://stage.edge.org/inthenews/what-is-the-most-important-invention-in-the-past-two-thousand-years
[3] https://stage.edge.org/contributors/what-is-the-most-important-invention-in-the-past-two-thousand-years
[4] https://stage.edge.org/responses/what-is-the-most-important-invention-in-the-past-two-thousand-years
[5] https://stage.edge.org/memberbio/john_allen_paulos