I think the fallacy of this article is that there really isn't a mutually exclusive choice, or "crossroads" as TechCrunch calls it. SV/Palo Alto tends to be centered on the hardcore science, such as hacking file systems and search algorithms, while SF tends to be centered around social media and tools, with a couple in between like Github, which makes Git incredibly more powerful and social. It's ridiculous to think scientific innovation will end in SV.<p>EDIT: I think that it would have helped for the article to talk about how SF has changed from SV.