We are on the cusp of a revolution. Mobile phones, computers and iPods are commonplace in hundreds of millions of households worldwide, influencing how we think and shaping how we interact.

In the future, smart machines will compete with clever people for employment and even human affection. We are shifting to a world where knowledge will be automated and people will be rewarded instead as conceptual and creative thinkers. Hence being able to think and act in ways that machines cannot will become vital. Ideas are the currency of this new economy and curiosity and imagination are among the key raw materials. But what happens to the rigour of our thinking in a world where we never really sit still or completely switch off? What are some of the unexpected consequences of digital information on the 100 billion cells and quadrillion connections inside our brains?