Airbnb
“Airbnb turned spare bedrooms into a $75B empire by teaching the world that strangers' houses could feel more like home than hotels — a genuinely revolutionary insight that created an entire category and survived every regulatory tantrum from Paris to San Francisco. The irony is that their beautiful network of 5.5 million hosts, which took 17 years to build and represents the deepest residential accommodation inventory on Earth, is exactly what keeps them alive as AI starts generating personalised travel itineraries that bypass traditional booking flows entirely.”