Deep Learning: Is this the end of theory or a rallying cry for deep explanations?

I initially dismissed David Weinberger's report of alien knowledge as tabloid sensationalism. But as the recommendations for his essay accumulated, it gave me pause. Weinberger's post rewards a close reading. My intent here is to present a more incremental, less revolutionary perspective on AI and machine learning. I believe the historical antecedents paint a far more earthly, but perhaps no less sensational, picture. I also believe Weinberger is accurately expressing the concerns (and possibly even hopes) of many within the community, expert and layperson alike.