So much of what passes for history today is one dimensional. We see the events, the names, the places the timeline and the heroes and the villains. But there is often another dimension. Not so much a secret history, but almost like the moon, it has a dark side, hidden from us. It’s there, we just don’t see it and therefore we don't’ appreciate it and its broader impact.

So it is with Silicon Valley. Literally, millions of words have been written about it. In fact, with the exception of politics and Washington, no place gets more coverage and attention. No accident given their long symbiotic relationship.

Therefore you would think that by now we know it all. But we don't. This is why people still write books and surprise us about our origin story as a nation and about our wars past. And it’s why, particularly at this time when tech is under such scrutiny, we should understand everything we can about its history. That’s what Margaret O’Mara has tried to do in The Code: Silicon Valley and the Remaking of America

My conversation with Margaret O'Mara: