A Korean woman receives death threats because she wouldn't clean up her dog's mess on the subway; a Chinese man suspected of philandering is besieged by angry emails and phone calls; an American college student caught plagiarizing online is turned in by incensed bloggers.
It's not risky to be an optimist when it comes to predicting tech trends. This past year, like every other recently, was one of stunning advancements as well as further empowerment for ordinary people. Tech continues to make our lives richer, even though it also often makes us feel overwhelmed.
Heaven or Hell? Or perhaps something else altogether? In the final of a three-part series CNN hears how some scientists believe the future will be neither heaven nor hell. But that humanity's path instead lies somewhere in between --- a scenario author and journalist Joel Garreau has dubbed 'Prevail'.