If only there was a way of using setjmp/longjmp-style contexts instead of goto, un/winding the stack as required. So we could travel around in time... unfortuna

If only there was a way of using setjmp/longjmp-style contexts instead of goto, un/winding the stack as required. So we could travel around in time... unfortunately you can't work with a setjmp buffer before it's actually created, unlike gotos.