The Secret Genius of Modern Life: Season 1, Episode 2

1 - 2: Food Delivery App

Hannah Fry tucks into the tech behind food delivery apps like Deliveroo and Just Eat, which are now used by 24 million people in the UK.

Hannah meets the R&D team behind food delivery titan Deliveroo, finds out how pensioners ordering Greggs revolutionised food delivery, and discovers how pizza made us fall in love with the internet in the 1990s.