Word: often
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Dates: during 1990-1999
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...union was obvious from the outset. In contrast to Louis' charming, gregarious, outgoing nature, Mary was shy, reserved, socially uncomfortable and, in her own words, not very fond of other people. Mary preferred to carefully evaluate scientific evidence before reaching any conclusions; Louis, on the other hand, was often impulsive and cavalier in his proclamations. Rigorous in her approach, intensely focused and remarkably diligent, Mary quickly set new standards in the study of African prehistory, culminating in her stunning monographs on the archaeology of Olduvai Gorge...
Much like his father, Richard has strong opinions and is often hasty to make pronouncements about his discoveries. This was especially true when he presented, in 1972, a Homo skull that he believed was 2.9 million years old. Adhering to his father's belief in very early Homo, this find, older than all Australopithecus fossils then known, was a welcome and stunning endorsement of Louis' views. Louis and Richard had been feuding over museum matters, and this discovery brought them together again in a final meeting shortly before Louis died. He spent his last days comforted by the knowledge that...
...first (but not the last) browser, which allowed users anywhere to view his creation on their computer screen. In 1991 the World Wide Web debuted, instantly bringing order and clarity to the chaos that was cyberspace. From that moment on, the Web and the Internet grew as one, often at exponential rates. Within five years, the number of Internet users jumped from 600,000 to 40 million. At one point, it was doubling every 53 days...
...mini-meritocracy for a few people who are very high in one ability. If you score in the top 1% on IQ tests, a system is in place in this country that is amazingly good at finding you and offering you access to a first-class education that can often lead to first-class job opportunities. People with very high IQs don't necessarily run the country; they do, however, usually have access to a privileged and protected position...
...predict what lies ahead, we must often rely on guesswork. But the nature of our present ignorance points to problems science cannot avoid. The most obvious of these is the question of what happens in our head when we are thinking. Nobody yet has a compelling answer for that. People surmise, but no surmise can yet meet the tyrannical test that every assertion about the nature of the world must be proved by experiment or observation...