To the media, what's relevant is anything that grabs attention. This is the racket at the heart of the industry's business model. The news they supply us is irrelevant, but it's sold as relevant. 'The relevant versus the new': it's the fundamental battle facing us today.

Bad news is perceived as more relevant than good news. Negative information has twice the impact that positive information does. In psychology, this is called negativity bias, and it can be observed in even one-year-old infants. They respond more sensitively to negative stimuli than to positive ones. Adults are no different. A stock falling by ten per cent makes us twice as unhappy as a stock climbing by ten per cent makes us happy. Negativity bias is innate.

We ought to try and understand the 'generators' underlying these events. We ought to be investigating the 'engine room' behind them. Sadly, shockingly few journalists are able to explain these causal relationships, because the processes that shape cultural, intellectual, economic, military, political and environmental events are mostly invisible. They are complex, non-linear and hard for our brains to digest. This is why news corporations focus on the easy stuff: anecdotes, scandals, celebrity gossip and natural disasters. They are cheap to produce and easy to digest.

Imagine you're at a football game. A few spectators in front of you stand on their tiptoes to get a better view of the field. Now everybody else is forced to stand on their tiptoes. The net gain is zero, and now everybody's calves are cramping up. It's exactly the same with news production and consumption. The louder one outlet screams, the louder all the others have to scream too. The more outrageous one side's arguments, the more outrageous the other side's counterblast has to be. The consequence? White noise and a polarised society.