Well it does seem like an odd idea, though when one considers the motivating app, telephony, where the goal is code that runs forever, it's not so far-fetched.

Well it does seem like an odd idea, though when one considers the motivating app, telephony, where the goal is code that runs forever, it's not so far-fetched. I could imagine using such features to back off minor changes to running code on the fly. Another domain would be air traffic control systems.