In what some have dubbed a repeat of Greenspan's "irrational exuberance" description of the dot-com bubble in the 1990s, this morning the ECB warned in its Financial Stability Review (in which it used the word "exuberance" at least 8 times), that the euro-area faces "elevated" risks to financial stability as it emerges from the pandemic with high debt burdens and “remarkable exuberance” in markets as bond yields rose. The stark warning, first reported by Bloomberg, sent risk asset reeling and cryptocurrencies tumbling and highlights mounting concerns that the flood of fiscal and monetary stimulus needed to fight the crisis is also building up dangerous imbalances.