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All of this is like one of those optical illusions that your mind perceives as one picture until someone points out that there's a totally different way of looking at the image. Depending on the market that people consider, the takeover is either an egregious boost to Microsoft's power or a tonic to Google's excessive search share. The lesson seems to be that technology companies -- once valiant defenders of the idea that the government should keep its hands off this dynamic marketplace -- are eager to see regulators jump in to temper a runaway market leader. Unless, of course, the company is that leader.