I think it&#x27;s the finance industry&#x27;s version of the hype cycle. Every time a new financial instrument is invented it gets used, overhyped and oversold, there&#x27;s a crash, and then it becomes a boring&#x2F;useful tool in the toolbox. E.g. options and the dutch tulip bubble, derivatives in the &#x27;80s, CDS in the &#x27;00s.