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Re:Challenging Clojure in Common Lisp (2014) by moomin on Sunday January 08, 2017 @04:45AM (#13349061)
Short version: put :warn-on-reflection in your leiningen file, And then add type hints (google them) to reduce the warnings to zero.

There's no reason the average Clojure project ever need be using reflection for dispatch.

Re:Challenging Clojure in Common Lisp (2014) by raspasov on Sunday January 08, 2017 @04:53AM (#13349083)
Correct, a lot of the average application-level code you see in the wild does not have to worry about this. If we're talking about things like load-balancers or databases or endpoints/functions that will be hit 1000s of times per second - then it's a diff. conversation.