How's this for navel gazing? Deloitte & Touche asked 500 CEOs of tech companies what they considered the most important technical innovation of the 20th century. "The Internet," said 26%. "The computer," said 20%. The response tracks nicely: 50% of these visionaries work in the software industry, and a further 9% describe their field as "Internet." Likewise, 9% of CEOs chose "telecommunications"--oddly close to the 10% who head up communications companies. Space travel, antibiotics, nuclear fission, and the airplane all fell into a category with 16% of the vote: "other." Be it ever so humble.

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