How the growth in food delivery apps could change the restaurant industry forever. Manuela Saragosa speaks to Moe Tkacik from the American Economic Liberties Project about threat posed to restaurants by the dominance of platforms like DoorDash, Uber Eats and Deliveroo. Collin Wallace, former head of innovation at GrubHub, explains why these platforms continue to expand despite never making a profit. Food writer Jonathan Nunn discusses the breakdown of the relationship between customers and restaurants, and what that could mean for the future of the industry. And restaurateur Charlie Mellor tells us why his experience with delivery apps led him to set up his own rival platform.