Many people who celebrate the arts and the humanities, who applaud vigorously the tributes to their importance in our schools, will proclaim without shame (and sometimes even joke) that they don’t understand math or physics. They extoll the virtues of learning Latin, but they are clueless about how to write an algorithm or tell BASIC from C++, Python from Pascal. They consider people who don’t know Hamlet from Macbeth to be Philistines, yet they might merrily admit that they don’t know the difference between a gene and a chromosome, or a transistor and a capacitor, or an integral and a differential equation. These concepts may seem difficult. Yes, but so, too, is Hamlet. And like Hamlet, each of these concepts is beautiful. Like an elegant mathematical equation, they are expressions of the glories of the universe.
The dystopian society envisioned by George Orwell in the aftermath of World War II, at about the same time the transistor was invented, has completely failed to materialize,” the historians Michael Riordan and Lillian Hoddeson wrote, “in large part because transistorized electronic devices have empowered creative individuals and nimble entrepreneurs far more than Big Brother.
One other person came up with a link-based scheme very similar to PageRank: a Chinese engineer named Yanhong (Robin) Li, who studied at SUNY Buffalo and then joined a division of Dow Jones based in New Jersey. In the spring of 1996, just as Page and Brin were creating PageRank, Li came up with an algorithm he dubbed RankDex that determined the value of search results by the number of inbound links to a page and the content of the text that anchored those links. He bought a self-help book on how to patent the idea, and then did so with the help of Dow Jones. But the company did not pursue the idea, so Li moved west to work for Infoseek and then back to China. There he cofounded Baidu, which became that country’s largest search engine and one of Google’s most powerful global competitors.