When you start a revolution, you need to go public before the next revolution starts. Hadoop used to be the “revolutionary” technology behind the “big data” revolution but it has now been buried deep by deep learning, at least as far as the tech hype is concerned. One Hadoop distribution vendor, Hortonworks, sensed the passing of the “revolution” baton early, and went public in 2014. “In a year or two we may look back at November 10, 2014 [the day it filed for IPO] as the beginning of the end of the Hadoop Bubble,” I wrote in The End of the Hadoop Bubble?