Now he has moved on to machines, but it starts with nature. "In the 1960s, an idea penetrated deep into the public imagination that nature is a self-regulating ecosystem, there is a natural order," Curtis says. "The trouble is, it's not true – as many ecologists have shown, nature is never stable, it's always changing. But the idea took root and spread wider – people started to believe there is an underlying order to the entire world, to how society is structured. Everything became part of a system, like a computer; no more hierarchies, freedom for all, no class, no nation states." What the series shows is how this idea spread into the heart of the modern world, from internet utopianism and dreams of democracy without leaders to visions of a new kind of stable global capitalism run by computers. But we have paid a price for this: without realising it we, and our leaders, have given up the old progressive dreams of changing the world and instead become like managers – seeing ourselves as components in a system, and believing our duty is to help that system balance itself. Indeed, Curtis says, "The underlying aim of the series is to make people aware that this has happened – and to try to recapture the optimistic potential of politics to change the world." ... more »