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Every year the silicon computer chip shrinks in size by half and doubles in power, enabling our devices to become more mobile and accessible. But what happens when our chips can't get any smaller? George Tulevski researches the unseen and untapped world of nanomaterials. His current work: developing chemical processes to compel billions of carbon nanotubes to assemble themselves into the patterns needed to build circuits, much the same way natural organisms build intricate, diverse and elegant structures. Could they hold the secret to the next generation of computing?

The computers have won.

Institutional Investor just released its annual list of the top-earning hedge fund managers, and six of the top eight are quants, or managers who rely on computer programs to guide their investing.

The list includes Ken Griffin of Citadel, Jim Simons of Renaissance Technology, and John Overdeck and David Siegel of Two Sigma.

In 2002, by contrast, just two computer-driven investors were included in the ranking, according to Institutional Investor.

The list highlights just how hedge fund investing has changed over the past 15 years.

It is not that the brash, characterful traders of old are a dying breed. There are still plenty of alpha-male risk-takers in a company gilet wandering around New York and Greenwich, Connecticut.

It's just that they're losing ground to tech specialists who program robots to play air hockey in their spare time.

The rise of quant-driven hedge funds is really just a part of the evolutionary shift that is taking place on Wall Street that en

Arthur C. Clarke's first broadcast on 29 May 1974, he told the Australian Broadcasting Corporation (ABC) that by 2001 every household will have a computer and be connected all over the world. Clarks was a British science fiction writer, science writer and futurist, inventor, undersea explorer, and television series host.  He is perhaps most famous for being co-writer of the screenplay for the movie 2001: A Space Odyssey, widely considered to be one of the most influential films of all time.