Continuations are extremely counterintuitive and should only be used as low-level building blocks. Exceptions are actually a kind of continuation, and in Commo

Continuations are extremely counterintuitive and should only be used as low-level building blocks. Exceptions are actually a kind of continuation, and in Common Lisp the compiler uses continuations to implement exceptions (i.e. "conditions") and the restarts system. It is common in functional languages for the compiler to use continuation passing style as an intermediate representation, where instead of returning from a function you will invoke the "return continuation" that was passed to the function as an argument (i.e. it is the code that follows the function call -- where you return to).