Andrew McAfee: What will future jobs look like?

Sometimes TED talks are too whimsical and idealistic for their own good, but in this seminar the economist Andrew McAfee suggests that, yes, droids will eventually take our jobs — or at least the kinds of jobs we know now. In this far-seeing talk, he thinks through what future jobs might look like, and how to educate coming generations to hold them. But I beg to ask the question, with all this ongoing automation and downsizing, how do we truly expect to fill enough jobs when the Earth is going to have to accommodate several billion more humans in the coming decades?