If in a namespace I bind a var:

(def foo 3)

And then later on in my program re-bind that var:

(def foo 1)

Will all parts of my program instantly see that update? How is it
possible to have any sort performance when we're basically having a
namespace function lookup for every single function call?

Thanks for the help,

Timothy

-- 
“One of the main causes of the fall of the Roman Empire was
that–lacking zero–they had no way to indicate successful termination
of their C programs.”
(Robert Firth)

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