Can you distinguish between a bot and a human?

We’ve all gone a bit bot-mad in the past few weeks. Automated accounts have invaded our civic life – especially pesky Russian ones – and politicians on both sides of the Atlantic have woken up to the fact that a new propaganda war is taking place online.

Bots – which is of course short for robot – are essentially accounts which can be programmed to automatically post, share, re-tweet, or do whatever the programmer chooses. Creating a bot is extremely easy, and huge amounts of cheap bots are available on dark net markets for next to nothing. There are millions of harmless bots out there doing all sorts of helpful and funny things, including breaking news stories. But Russia twigged early that bots can also be usefully deployed to influence public opinion. It has been using them for years. During the Senate investigation into Russian meddling in the US election, Twitter revealed the handles of some 36,746 Russian-linked bots.