Within five years, [Kurzweil] believes that high-tech solar panels will become less expensive per watt of energy produced than oil, taking away the financial incentive for people to burn through nonrenewable natural resources. Within 20 years, they will have largely replaced fossil fuels as the primary source of the world's energy.
In a more general view, Kurzweil noted that the average life expectancy was growing at the rate of roughly three months a year. Now that information technology is affecting medicine, Kurzweil projected that in 15 years, the life expectancy of people will start expanding at the rate of more than a year for every year that passes, essentially not only delaying death, but actually pushing it further away with each passing day.
"We didn't stay on the ground," Kurzweil said. "We didn't stay on the planet. And we have not stayed within the limitations of our biology."
Kurzweil: 'Exponential' change ahead for games, people | CNET News.com
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