3 ms·

I believe it was due to limitations of the JVM at the time. Edit: https://www.windley.com/archives/2008/11/tail_optimized_mutual_recursion_in_clojure.shtml htt

• erik_seaberg 5y ago
  I prefer Scala’s solution, where tail calls look like normal calls, and a @tailrec annotation can assert they really are optimized out (or break the build).
• gumby 5y ago
  Seems like they compiler could generate the trampoline itself and just ignore any recur that occurs.