Conventions, Style, and Usage for Clojure Constants?

Question

What are the best practices for defining constants in Clojure in terms of style, conventions, efficiency, etc.

Answer 1

The earmuffs are a way of denoting that a given symbol will have its own thread-local binding at some point. As such, it does not make sense to apply the earmuffs to your Pi constant.

*clojure-version* is an example of a constant in Clojure, and it's entirely in lower-case.