&quot;That&#x27;s absurdly unlikely to happen with S3.&quot;<p>How absurd was it that money market funds would fall below $1 during the recent unpleasantness ?  It was so unthinkable that major parts of our entire global economy were <i>predicated upon it never happening</i>.<p>It happened.<p>Money markets are even more &quot;serious business&quot; than Amazon, or even all of tech is, and had even more big brains attesting to their inability to fail.  They failed.