Kevin Drum writes for Mother Jones that we'll be in a robot paradise by 2040:
We've moved from computers with a trillionth of the power of a human brain to computers with a billionth of the power. Then a millionth. And now a thousandth. Along the way, computers progressed from ballistics to accounting to word processing to speech recognition, and none of that really seemed like progress toward artificial intelligence. That's because even a thousandth of the power of a human brain is—let's be honest—a bit of a joke. Sure, it's a billion times more than the first computer had, but it's still not much more than the computing power of a hamster.
