Bitcoin bubble?

A bubble(sometimes referred to as economic bubble, speculative bubble, market bubble, price bubble or financial bubble ) is a trade in high volumes at prices that are considered at variance with intrinsic values. This is because it is often difficult to observe intrinsic values in real life.
Bubbles could also be described as a situation in which asset prices appear to be based on inconsistent or implausible views about the future
Can bitcoin bubble?
Bubbles form in economies, securities, stock markets and business sectors because of a change in the way players conduct business. When a companies evaluation is way above its price earning ratio, that's when a bubble appears.
 Bitcoin has no target for price earning ratio, so no bubble.