For centuries we have met our other halves through family, friends, work, or religious institutions. But they have all now been outstripped: meeting online is now the most common way to meet. Not long ago, finding love online was considered unconventional. Now the ping of dating apps is the soundtrack to many people's lives.
But what does this change mean for how we choose whom to date?
Shahidha Bari, author and academic at Queen Mary University of London, examines the changing landscape of modern love - its dating apps, its politics of sexual preference - and ultimately tries to answer the age-old question: what does Love Island tell us about love?
Producer: Ant Adeane