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The search engine
The idea is borrowed from academic citation analysis: a paper many others cite is probably important. The consequence was that access to knowledge was no longer bounded by what a library held, but by what one company's ranking put at the top — making the question of who decides that order one of the most consequential of the information age.
Factual errors are corrected without argument once documented. What you send is read by a person and checked against sources — nothing changes automatically. See the editorial policy.