Science and Technology

Over at the academy, the lecture is not what it used to be. Colourful slides and short videos accompany the spoken word, and this audio-visual feast can be ordered take-away, lecture recordings instantly downloadable from the university’s ‘learning management system’. Students sit, laptops open, alternating their gaze between the lectern and the web. Many stay home, speeding up the recordings to whiz through the dull bits. Academics speculate on whose lectures will be chipmunked the most.

Most of these students are digital natives, a generation that has grown up with the Internet, Facebook, immersive video games, and mobile devices. According to Susan Greenfield, a prolific Oxford neuroscientist, the natives are restless. They are also narcissistic, superficial, passive, inattentive, uncentred, and aggressive. In Mind Change, Greenfield ties these failings together as a syndrome of our time. Its cause, she argues, is the steady encroachment of digital technologies into our lives. Greenfield has raised concerns about their influence for many years, and her book attempts to marshal the scientific evidence to support them.

In the current fad for omnibus histories of absolutely everything, designed to replace ancient metaphysics, perhaps, or answer some marketing brainwave, no one has succeeded in quite the way Christine Kenneally has. She approaches her task with a very specific enquiry: what is the interplay between genetics and human history? Searching for an answer, she uncovers worlds within worlds.

This clear and cogent book is an important wake-up call. It should not need saying that it is impossible for human populations and economies to grow without limit on a finite planet, but that delusion is widespread. This book is a reminder of the inconvenient truth that should be informing our leaders ...

I must let you into a secret. I have three different ways of reading books: lightning fast, with serene attention; and, as with Smashing Physics, postmodern.

The fast mode is forced by unavoidable professional requirements. This week, for example, I received a (thankfully) slim volume just hours before having to record a satellite interview with the author who is based at Harvard. I had ninety minutes to skim the novel to obtain enough ‘feel’ for the work so that I could lead a credible discussion. All went well.