As befits Silicon Valley, 'big data' is mostly big hype, but there is one possibility with genuine potential: that it might one day bring loans - and credit histories - to millions of people who currently lack access to them.

It is easy to be seen as either a genius or a crank. If you have a Ph.D., at least you somewhat lower the chances that you will be seen as a crank.

Once a term like "open source" entered our vocabulary, one could recast the whole public policy calculus in very different terms, so that instead of discussing the public interest, we are discussing the interests of individual software developers, while claiming that this is a discussion about "innovation" and "progress," not "accountability" or "security."

Technological defeatism - a belief that, since a given technology is here to stay, there's nothing we can do about it other than get on with it and simply adjust our norms - is a persistent feature of social thought about technology. We'll come to pay for it very dearly.

Creative experimentation propels our culture forward. That our stories of innovation tend to glorify the breakthroughs and edit out all the experimental mistakes doesn't mean that mistakes play a trivial role. As any artist or scientist knows, without some protected, even sacred space for mistakes, innovation would cease.

Mobile phones are one of the most insecure devices that were ever available, so they're very easy to trace; they're very easy to tap.

I don't think love for technology itself breeds change.