Society has slowly handed over significant control to computers but how much should we rely on them over our own instincts?

Mathematician Hannah Fry uncovers the hidden algorithms behind almost every aspect of our modern lives; lifting the lid on their inner workings, demonstrating their power and exposing their limitations.

Data: In the wake of the Cambridge Analytica scandal, can our personal information ever be safe online?

Written and read by Hannah Fry.

Abridged by Robin Brooks

Producer: Eilidh McCreadie

First broadcast on BBC Radio 4 in September 2018. Show less