You know, in many Lisps let is a macro too. In Clojure it expands to
the special form let* (an implementation detail); a Scheme
implementation might implement it as ((lambda (binding-symbol ...)
expr . exprs) binding-val ...).

Now, would you expect the following to return (inc x) -- a list of two
symbols -- or 2?

(let [x 1]
  (inc x))

There's no promise arguments passed to macros will *never* be
evaluated, that would make no sense at all. They're just not being
evaluated at compile time.

Sincerely,
Michał

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