Understanding AI: How does artificial intelligence work?

AI is seemingly everywhere today. It is used to recommend what you should buy next online, understanding what you say to virtual assistants, recognising who and what is in a photo, and helping to spot spam or detect credit card fraud. But what exactly do we mean when we talk about 'Artificial Intelligence?' We chatted to Atenkosi Ngubevana, Group Executive: Digital Process Re-engineering at Vodacom, about the future of AI.