"Robert Shiller, Yale Professor of Economics, and two other professors from the University of Chicago - Eugene Fama and Lars Peter Hansen - won the Nobel Prize in 2013 for their research into market prices and asset bubbles."

If I were a "back surgeon" then A LOT of people with back problems would need surgery.  If you are looking FOR a bubble it LOOKS like a bubble but the problem is we don"t know what Bitcoin will do because it is new and there really isn't anything to compare it to.