Relevant portion of the article:

"According to economists David Tuckett and Richard Taffler, we often view a hot new financial opportunity as a “phantastic object,” or an unconscious representation of something that fulfills our wildest desires.

These objects are “exciting and transformational.” They appear to “break the usual rules of life and turn aspects of ‘normal’ reality on its head.” They promise something far departed from the market’s typical behavior.

During a bubble, we formulate a “collective hallucination” of prosperity, and fall victim to groupthink, a phenomenon where “a significant chunk of society feverishly buys into a shared dream” and ignores reality."