Word: problem
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Dates: during 1990-1999
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...magic. But now he has added murky to the list. Why? Not even Witten, it turns out, has been able to write down the full set of mathematical equations that describe exactly what M theory is, for it has added still more layers of complexity to an already enormous problem. Witten appears reconciled to the possibility that decades may pass before M matures into a theory with real predictive power. "It's like when you're hiking in the mountains," he muses, "and occasionally you reach the top of a pass and get a completely new view. You enjoy...
...sense, of course, Newton's was the greatest magic of all: the thought (owing something to alchemy) that for all phenomena of nature and society, there must be not only a discoverable secret but a generalization with the force of law--a solution to every problem, scientific, social or moral...
...North Whitehead wrote, "The greatest invention of the 19th century was the invention of the method of invention." That method, Whitehead added, "has broken up the foundations of the old civilization." Thomas Alva Edison never thought of himself as a revolutionary; he was a hardworking, thoroughly practical man, a problem solver who cared little about ideas for their own sake. But he was also the most prodigious inventor of his era, indeed of all time, and he was recognized as the spirit of a new age by his contemporaries. They observed the amazing new products streaming...
Other candidates for this honor soon abounded. Edison was working on a problem in telegraphy in 1877 when he noticed that a stylus drawn rapidly across the embossed symbols of the Morse code produced what he later described as "a light, musical, rhythmical sound, resembling human talk heard indistinctly." If it was possible, he reasoned, to "hear" dots and dashes, might not the human voice be reproduced in a similar manner? After much trial and error, Edison gathered a small group of witnesses and recited "Mary Had a Little Lamb" into a strange-looking contraption. The spectators were amazed...
...then there is the problem of impact. Which matters more, a life lost or a life changed forever? How many divisions does the Pope have, Stalin asked. Yet an idea that changes lives can have more power than an army that takes them--which leaves Gutenberg presiding over the 15th century, Jefferson over the 18th. Making body counts the ultimate measure of influence precludes the possibility of heroic sacrifice, a single death that inspires countless others to live their lives differently, a young man in front of a column of tanks near Tiananmen Square. "Five hundred years from...