I agree with and upvoted your post, but there is one assumption you make that I'm not sure is correct: "If I search on YouTube for "python", it has a chance to

I agree with and upvoted your post, but there is one assumption you make that I'm not sure is correct: "If I search on YouTube for "python", it has a chance to know that I mean the programming language, because of who I'm Following." Are you really not interested in the snake just because you follow a lot of programmers? For example, I follow the hacker news circle on Google+, because I respect technical expertise and interests of you guys. Some of you might like to write about some other topic like sports, but that's not why I'm following you. Now if I do a Google search for "running shoes", how can Google know that everything you wrote about this topic is not to be used to "improve" my ranking?