> Also, functions could coerce to either of the closure types Huh, I recall this not working. Perhaps I made a mistake then. > closures were pointers into the

> Also, functions could coerce to either of the closure types Huh, I recall this not working. Perhaps I made a mistake then. > closures were pointers into the stack Ah, the type erasure was through &mut. TIL; I always thought it was Box only.