Ever since the release of Google+, I’ve been thinking through what Google had to go through to match and improve on Facebook. People think that geekery is all about code but there is serious intellectual work that precedes the code that is just as hard. Google had to figure out what they did wrong with Buzz (as I explained) but also figure out what is actually wrong with Facebook, if there is such a thing. Whatever it was that they figured out, they put their finger on something because Google plus already has 20 million users. Not bad for a limited, 3-week rollout.