Another Java innovation (from back in Java 6) that could benefit from
interop support is varargs. The Java compiler automatically passes
arguments with an array, but the Clojure compiler does not. That's CLJ-440.
But I do not find a Jira ticket (https://dev.clojure.org/jira/) related to
seq
Very cool!
If you are at the level where using into with http headers is a hotspot
then you really are getting pretty good perf already.
At the language level have you seen:
https://github.com/lacuna/bifurcan/blob/master/doc/comparison.md
This may help eek a bit more perf out of some specific
