Is Bitcoin the bubble that refuses to burst?

(Source: Bitcoin Charts)

Bitcoin's rise has been persistent, despite being identified as a bubble by market commentators over a fortnight ago. Last night the cryptocurrency passed $182. Our tech reporter James Titcomb:

Data from Google showed that Russians were the world’s keenest searchers for Bitcoin, adding weight to the belief that much of the recent rise in the currency’s price was down to the Cypriot banking crisis.

(Full article)

References to the currency's ascension as a bubble have decreased: