"The fact that we're spending $700 billion a year on oil is actually a good thing; it means we have the prosperity to do it. It means that oil's being used, and oil is the fuel for the engine of freedom."

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Walking is a skill that took millions of years for us to develop... If you wanted to design a robot that could walk as well as a person, this would be fantastically complicated software. It would have to be doing billions of calculations with every step.

— David Pogue