The fact that they are bubbles makes that an obvious comparison. But from the IPO perspective, things aren't nearly as crazy as they were in the ~1999 timefram

The fact that they are bubbles makes that an obvious comparison. But from the IPO perspective, things aren't nearly as crazy as they were in the ~1999 timeframe. The sheer number of IPO's back then was nuts, and most of them ended up falling off a cliff. Sure, there are a couple of bigs ones now, but it doesn't seem like mass delusion as then. What are you looking at to draw that conclusion?