What is the lesson of the dotcom days? There will be a brief pullback - and a couple goofy businesses will live in infamy - before that tech actually does go to the moon?
That many big names during the bubble are not the companies that actually became large long-term successes on the other side.
The lesson of the dotcom days was that transformative technology does not relieve a business from worrying about financial fundamentals.
The dotcom crash wasn't about technology, it was about business.