> This would imply that you can jump into the same stack frame multiple times, or do other weird things. Yep— this is how you can implement the `amb` operator

> This would imply that you can jump into the same stack frame multiple times, or do other weird things. Yep— this is how you can implement the `amb` operator with call/cc: https://ds26gte.github.io/tyscheme/index-Z-H-16.html https://ds26gte.github.io/tyscheme/index-Z-H-16.html