Is it possible to create true artificial intelligence and, if so, how close are we to doing so, asks mathematician Professor Marcus du Sautoy.
It was while I was making my last BBC TV series, The Code, that I bumped into a neuroscientist I knew.
“Have you heard the news about Watson?” he asked me.
I wasn’t quite sure what he was referring to. A new release of Sherlock Holmes? I looked confused.