The BBC's North America Technology correspondent Dave Lee has a grandstand view of the hot bed of innovation that is Silicon Valley.
But he says it's not all its cracked up to be.
"A review of Silicon Valley from the outside, is one of relentless optimism - that very American [idea] everything is possible, you know the skies the limit.
"But actually when you talk to the people who are working hard every day, it's no coincidence that success happens here."
He was lucky enough to have a a ride in one of Google's driverless cars, which he describes as "brilliant, but boring."
"It plays by the rules so much, you find yourself in the backseat thing 'oh get on with it.'"
He also tells Colin Peacock about how virtual reality is terrifying - dangerous, even.