So what is the state of Artificial Intelligence today? Carl and Richard geek out about what AI means today. The conversation starts out as usual with a bit of a history lesson - many things that were once called AI are now common, reliable technology like speech synthesis, natural language recognition, even vision systems. Once they work, they aren't AI any more. But the idea of an Artificial General Intelligence is much more challenging - and potentially risky. Richard digs through the key elements of AGI, the concept of the Singularity, comparing modern computers to the human brain and how close we may well be to making an AGI. But should we?