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I disagree with the author. I know he's incredibly successful and right about pretty much everything he's ever said, but I've had some experience in this area and just finished reading through some of the archives and I think his focus is wrong. I'm going to ignore the technical issue and talk about the bigger picture and higher level things than what was said in the blog post. If the OP thinks that the process is most important, it's really about end results. But if he thinks it should be about the end results then he's an idiot for not thinking about the process. I'll weasel in a reference the startup I co-founded even though it's not directly relevant.
Here's a long detailed, objective explanation of everything related to this issue. It's probably more useful than the actual link and it may serve as one of the best efforts to consolidate information on this subject on the entire Internet. If it contains original research only a couple of readers will be qualified to tell. Half the people who upvote this won't understand more than the first two paragraphs.
Edit: I anticipated the potential questions and added more information. Add some graphs and this could be a master's thesis.
I don't understand why Google asks such weird interview questions. They miss out on a lot of talent. I would never hire anyone based on their ability to estimate the number of edges on a grain of sand has after it's been run through a blender.
A big block of text with no paragraph breaks. t seems like the author is trying his hardest to provide something insightful and well-written, and while it seems on-topic it is hard to relate to the original article. None of it looks wrong, but it doesn't seem very informative either. Most people will just skip right over it. There will be a semi-obscure Wikipedia link somewhere in here.