When Computers control the world

Behind every smart web service is some even smarter web code. From the web retailers – calculating what books and films we might be interested in, to Facebook’s friend finding and imaging tagging services, to the search engines that guide us around the net.

At last month’s TEDGlobal conference, algorithm expert Kevin Slavin delivered one of the tech show’s most “sit up and take notice” speeches where he warned that the “maths that computers use to decide stuff” was infiltrating every aspect of our lives.

Among the examples he cited were a robo-cleaner that maps out the best way to do housework, and the online trading algorithms that are increasingly controlling Wall Street.

“We are writing these things that we can no longer read,” warned Mr Slavin.

“We’ve rendered something illegible. And we’ve lost the sense of what’s actually happening in this world we’ve made.”

The $23m Book:

The Making of a Fly” – a book about the molecular biology of a fly from egg to fully-fledged insect – may have been a riveting read but it almost certainly didn’t deserve a price tag of $23.6m (£14.3m).

It hit that figure briefly on the site after the algorithms used by Amazon to set and update prices started outbidding each other.

It is a small taste of the chaos that can be caused when code gets smart enough to operate without human intervention, thinks Mr Slavin.

“This is algorithms in conflict without any adult supervision,” he said.