Futuristic 'transient electronics' disappear when no longer needed

Scientists have described key advances toward practical uses of a new genre of tiny, biocompatible electronic devices that could be implanted into the body to relieve pain or battle infection for a specific period of time, and then dissolve harmlessly.

Claim: Facebook to "disappear" in 5-8 years 



A prominent financial analyst says he believes Facebook will lose most of its relevance in less than a decade.