At best, we’re on Earth for around 4,000 weeks – so why do we lose so much time to online distraction?

Silicon Valley makes billions by stealing your attention. No wonder it's so hard to focus...

One Friday in April 2016, as that year's polarising US presidential race intensified, and more than 30 armed conflicts raged around the globe, approximately 3 million people spent part of their day watching two reporters from BuzzFeed wrap rubber bands around a watermelon. Gradually, over the course of 43 agonising minutes, the pressure ramped up - the psychological kind and the physical force on the watermelon - until, at minute 44, the 686th rubber band was applied.

What happened next won't amaze you: the watermelon exploded, messily. The reporters high-fived, wiped the splatters from their reflective goggles, then ate some of the fruit. The broadcast ended. Earth continued its orbit around the sun.