It is generally believed that anybody who sees the lost city of R’lyeh goes insane. My personal observation is that the towns of Silicon Valley make me feel insane. It seems therefore plausible that Silicon Valley is in some way associated with Cthulhu.
Of course there are many people who live in Silicon Valley, but then R’lyeh must have inhabitants as well. Perhaps they have managed to adapt, or they were somehow immune. Or perhaps R’lyeh is only a state of mind–perhaps there is a R’lyeh for everybody out there somewhere. And perhaps a Cthulhu, too.