It's worth reading Nielsen's essay "Will neural networks and deep learning soon lead to artificial intelligence?" which was added today
I believe that we are several decades (at least) from using deep learning to develop general AI.
I conclude that, even rather optimistically, it's going to take many, many deep ideas to build an AI.
The appendix linked there doesn't seem to be ready yet though. In any case, I like how this is phrased. I'd like to see some of the hype around deep learning calm down.