How long does it take for social media feeds to lead you down a political rabbit hole?

Algorithms are powerful tools that help social media platforms tailor content for the user. But they can quickly create echo chambers full of extremist ideologies or misinformation. By creating new accounts, writer Saoirse Hanley tested out how long it would take for her feeds to include videos or posts about immigration, and explores what ramifications that can have offline, too. From Review in Saturday's Irish Independent.