The Sunday Times' tech correspondent brings on Scott Galloway, NYU professor and author of The Four, to answer five big tech questions in 2018. 1. Is the (ad-based) Internet broken? (2:00), 2. Should Facebook be broken up? (3:40), How has Amazon managed to avoid the backlash? (6:00), 4. Why have advertisers not flexed their muscles (9:40), and 5. Is this any different from the robber barons or other eras where a handful of companies dominated industries? (13:45).