Well-deserved retirement! I recall a history of Clojure paper mentioning that Rich was using his retirement savings in the years spent to build Clojure[0]. This provides a lot of context as to why he has wanted to maintain ownership and tight control of Clojure. Overall, Clojure is a brilliant piece of work and it has made software development fun and productive. Many great talks were also given by Rich over the years, and Datomic, though the licensing was restrictive up until very recently, has so much synergy with Clojure that it's tough going back to Postgres. :)
Congratulations, Rich.
[0] https://download.clojure.org/papers/clojure-hopl-iv-final.pd...