Man beats machine at Go in human victory over AI | Ars Technica:

The discovery of a weakness in some of the most advanced Go-playing machines points to a fundamental flaw in the deep learning systems that underpin today’s most advanced AI, said Stuart Russell, a computer science professor at the University of California, Berkeley.

The systems can “understand” only specific situations they have been exposed to in the past and are unable to generalize in a way that humans find easy, he added.

“It shows once again we’ve been far too hasty to ascribe superhuman levels of intelligence to machines,” Russell said.