Ghosts in the machine

On the 15th March 2016, an artificially intelligent (AI) software programme called AlphaGo, defeated the world champion of an ancient board game called Go. The game is immensely complex, with a total combination of possible moves numbering several hundred orders of magnitude more than the number of atoms in the universe. Winning the series four-to-one, AlphaGo's victory was emphatic. It also showcased significant advances in AI's ability to recognise obscure patterns, learn new ones and adapt strategies to changing circumstances. Yet, just two weeks after AlphaGo's impressive victory, a new chatbot called Tay, exposed a darker side to AI. Designed to engage in friendly conversation with people online and assist them with Microsoft services, Tay's unique design feature was that "she" learns from her online interactions.