Ray Kurzweil has been quick to point out the remarkable growth that’s possible with solar technology. According to Kurzweil’s calculations, we can expect to be energy independent within the next 20 years.

In his 2012 book Abundance — endorsed by Kurzweil — entrepreneur Peter Diamandis makes the most eloquent case for why the sun is such an important player in any future scenarios of energy self-sufficiency. […]