Leading Artificial Intelligence thinker and researcher Eliezer Yudkowsky has shaped much of the development of AI technology that is radically changing our lives - but now he is sounding the alarm along with other experts and scientists who feel AI will eventually lead to humankind's demise. But while many of his colleagues and peers disagree, this debate is mainly being fought in small circles, with a lot of jargon - while the rest of us are left scratching our heads. One Decision's Julia Macfarlane spoke to Yudkowsky for clarity on the issue and to find out some of the worst-case scenarios of what could be coming our way in the future. Plus, Julia and former MI6 Chief Sir Richard Dearlove discuss how seriously we should take Yudkowsky's call for action - and why our resident spymaster is so skeptical about this apocalyptic warning.