One thing HN might care about: 3 years ago, 25% of Goldman employees worked in the IT division. They probably had more developers than Facebook and LinkedIn combined. http://www.businessinsider.com/goldman-sachs-has-more-engine...
It's disgusting to me that that much brainpower was/is dedicated to stock trading. All that programming and the only thing we get for it is that we can correctly value a company.
This is not to cast a shade on Google, but more to get some insight about how the brainpower may actually be spent.