Our lives get longer, things become smarter and cities keep getting bigger. What’s there not to like? Well in fact, quite a few things. Traffic jams, pollution, strained public resources, digital privacy breaches – just to name a few. The urban development has led to negative backlashes, but the very same development offers a solution to them. Will the megatrends of tomorrow’s cities be the apocalypse or the only thing that can save us? And how can this possibly be a $1,5 trillion business opportunity?