They are trying to solve the same problems, just coming at it from different angles. Google has given up on providing accurate search results to the anonymous

They are trying to solve the same problems, just coming at it from different angles. Google has given up on providing accurate search results to the anonymous user. They now believe that customization is the way forward (Global Warming results depending on your political leaning, etc.). One aspect where Google's size is really killing it: they should be manipulating results manually. For example, a JavaScript search should return MDN in the top 5 results and W3Schools not at all. That doesn't happen, I believe because Google can't manually do stuff like this because of the fact that they compete in many different markets. That's the advantage of only being a search engine; a search engine's job is to be biased.