Interesting and logical look at why sometimes talking about a goal makes it less likely to happen.
“The study’s author thinks it has to do with sense of identity and wholeness. We all want to be an idealized person, and declaring our intentions to work hard is a symbolic act. It contributes to the goal of completing who we are.”
It seems that once we let the world know what we are interested in becoming, it comes close enough to satisfying the need to be known for that. The doing usually never happens. Not cool.
http://www.mentalfloss.com/blogs/archives/41800