Is there a function which turns (values a b c) into (list a b c)?

@brendan You can use call-with-values to do that: (call-with-values (thunk (values a b c)) list)

note that the values have to be wrapped in a function that produces them, because you can’t pass multiple values as a single function argument

Also, the sugar package provides a values->list macro that does exactly what you want: (values->list (values a b c)) => (list a b c)