YouTube’s recommendation algorithm gives people more of the same Iain Masterton/Alamy Stock Photo

YouTube’s recommendation algorithm is the worst at recommending extremist content out of three popular websites. The other two in the comparison were Gab, a social media site similar to Twitter known for being popular with people on the far-right, and Reddit, a news aggregation site.

A team from Swansea University and the University of Stuttgart analysed the way personalisation algorithms on the three websites recommend content to their users.

Three …