It is difficult, given what Silicon Valley has become, to convey exactly what it was like in the 1970s and ‘80s. It was a remarkable centre of technology, but also the embodiment of the spirit of capitalism at its very best, as epitomised by garage start-ups like Apple. Greed, of course, is always a human motivation, but the early Valley culture was created by entrepreneurial outsiders who genuinely wanted to make the world better.