But so long as somewhere somebody is incentivised to invent ways of serving others’ needs better, then the rational optimist must conclude that the betterment of human lives will eventually resume.

Specialisation encouraged innovation, because it encouraged the investment of time in a tool-making tool. That saved time, and prosperity is simply time saved, which is proportional to the division of labour. The more human beings diversified as consumers and specialised as producers, and the more they then exchanged, the better off they have been,

The lesson is stark. Self-sufficiency was dead tens of thousand years ago. Even the relatively simple lifestyle of a hunter-gatherer cannot exist without a large population exchanging ideas and skills. The importance of this notion cannot be emphasised too strongly. The success of human beings depends crucially, but precariously, on numbers and

Yet looking back now, another fifty years later, the middle class of 1955, luxuriating in their cars, comforts and gadgets, would today be described as ‘below the poverty line’. The average British working man in 1957, when Harold Macmillan told him he had ‘never had it so good’, was earning less in real terms than his modern equivalent could now

This is history’s greatest theme: the metastasis of exchange, specialisation and the invention it has called forth, the ‘creation’ of time.

Today, the drumbeat has become a cacophony. The generation that has experienced more peace, freedom, leisure time, education, medicine, travel, movies, mobile phones and massages than any generation in history is lapping up gloom at every opportunity. In an airport bookshop recently, I paused at the Current Affairs section and looked down the

In 2005, the world made roughly ten billion tonnes of ethanol, 45 per cent of it from Brazilian sugar cane and 45 per cent from American maize. Add in a billion tonnes of biodiesel made from European rape seed and the result is that roughly 5 per cent of the world’s crop land has been taken out of growing food and put into growing fuel (20 per cent

This is what it would take to feed nine billion people in 2050: at least a doubling of agricultural production driven by a huge increase in fertiliser use in Africa, the adoption of drip irrigation in Asia and America, the spread of double cropping to many tropical countries, the use of GM crops all across the world to improve yields and reduce

The archaeologist who first described the Tasmanian regress, Rhys Jones, called it a case of the ‘slow strangulation of the mind’, which perhaps understandably enraged some of his academic colleagues. There was nothing wrong with individual Tasmanian brains; there was something wrong with their collective brains. Isolation – self-sufficiency –