permabear
n.— «Then there was the espouser of doom himself: Roubini was known to be a perpetual pessimist, what economists call a “permabear.” When the economist Anirvan Banerji delivered his response to Roubini’s talk, he noted that Roubini’s predictions did not make use of mathematical models and dismissed his hunches as those of a career naysayer.» —“Dr. Doom” by Stephen Mihm New York Times Aug. 15, 2008. (source: Double-Tongued Dictionary)
Further reading
Another great Yogism: “It’s difficult to make predictions, especially about the future.” This is part of a complete episode.
Related
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