Synthetic Brain Synapse

This article talks about how engineers at the University of Southern California have succesfully created a synthetic brain synapse out of carbon nanotubes. They can actually imitate brain functions but this isn't an artificial brain. This is just a stepping stone to creating an artificial brain. It shows how human technology is constantly striving forwards to obtain the unthinkable. Imagine if they succesfully create a synthetic human brain. What could be next after that?

http://www.popsci.com/science/article/2011-04/synthetic-synapse-constructed-carbon-nanotubes