1999 : WHAT IS THE MOST IMPORTANT INVENTION IN THE PAST TWO THOUSAND YEARS?
Emeritus Professor of Psychology, London School of Economics; Visiting Professor of Philosophy, New College of the Humanities; Senior Member, Darwin College, Cambridge; Author, Soul Dust
theoretical psychologist
The most important invention has been reading-glasses. They have effectively doubled the active life of everyone who reads or does fine work — and prevented the world being ruled by people under forty
