ghost in the machine
Preface There are many books about what life does. This is a book about what life is. I’m fascinated by what makes organisms tick, what enables living matter to do such astounding things – things beyond the reach of non-living matter. Where does the difference come from? Even a humble bacterium accomplishes things so amazing, so dazzling, that no human engineer can match it. Life looks like magic, its secrets cloaked by a shroud of impenetrable complexity. Huge advances in biology over the past decades have served only to deepen the mystery. What gives living things that enigmatic oomph that sets them apart from other physical systems as remarkable and special? And where did all this specialness come from in the first place? That’s a lot of questions – big questions too. I’ve been preoccupied with them for much of my working life. I’m not a biologist, I’m a physicist and cosmologist, so my approach to tackling big questions is to dodge most of the technicalities and home in on the...