Which free reads of the function fn are in a closure it makes without calling it: such a closure reads its free variables where it is called, which links them there (or, if nothing calls it, at the end of its scope), so a call of fn does not read them.
Which free reads of the function
fnare in a closure it makes without calling it: such a closure reads its free variables where it is called, which links them there (or, if nothing calls it, at the end of its scope), so a call offndoes not read them.