On a train or bus, or just standing in a queue, the most common sight these days is the muted glow of a screen, and the flickering thumbs of people lost in the endless scroll on their smartphones.
Across the world, about 62% of people are active social media users. In some countries, that figure is over 90%. That adds up to a lot of usage: the average UK adult spends 3 hours and 41 minutes online each day, which translates to around 56 days a year, almost two whole months.