What happens when Google's chatty bot chats with a chatbot?

Google Duplex impressed and scared the world in equal parts when it was unveiled, and now we've seen how a conversation goes with another chatbot. Duplex, for a quick primer, is Google's AI-powered voice bot which can call businesses on a person's behalf for things such as booking hair appointments. It's so realistic that everyone has decided that bots must declare themselves as such before chatting with a human. A company known as PolyAI – which specialises in "enterprise-ready voice assistants" – has posted an account of what happened when Duplex called one of its restaurant assistants. Duplex was calling businesses over the summer to update opening hours on Google Maps.