For those of us that have worked in the defense industry there is a level of security called Secret Compartmentalized Information or SCI. I'm sure that the Google Algorithm team is compartmentalized similar to some Top Secret Military Black Project. The develop teams are all working on small portions of the algorithm and not a one of them understands how the complete algorithm actually works. There are a very select few highly trusted engineers that have access to the completed code, just like a Black Project. These people you could count on one hand.
All the SEO consultants on the planet that think they know how the algorithm works are just guessing. Any SEO consultant who tells you they understand how that algorithm works is blowing smoke. If anybody outside of Google got access to the source code they would be rich. That is a more closely guarded secret than MicroSoft's source code.
The one thing that I do think is carved in stone is this: Content is King. If your site has good solid content then the Google Search Engine will rank it highly regardless of any other factor.
<<< Signatures need to be set up in your profile. >>>