Satisfying the borrow-checker usually ends up implying that either: a) you used .clone() everywhere and therefore are probably modifying something and failing

Satisfying the borrow-checker usually ends up implying that either: a) you used .clone() everywhere and therefore are probably modifying something and failing to propagate the modifications to where they need to go; or b) your design is inherently better, saner, easier-to-optimize, etc., than one which doesn't have to satisfy the borrow checker.