Intelligent machines equaling or surpassing humanity will not be created until what we have is already understood. As intelligence isn't defined, don't expect me to hold my breath.
The chess example is a poor one. This is a matter of rote memorization and not intelligence per se. It's been shown that low IQ people can become proficient at chess, thus discounting it as a measure of intelligence.
The advancement of neuroscience and mores law doesn't necessarily correlate to reproduction of a working intelligent machine.
Define intelligence and I'll be impressed. Until then, this is just another flying car.
RE: Killer Robots: Artificial Intelligence and Human Extinction