Remember when signals - aka the observer pattern - were a stupid overengineered enterprise design pattern object oriented programmers had to use because they we

Remember when signals - aka the observer pattern - were a stupid overengineered enterprise design pattern object oriented programmers had to use because they were too dumb to understand functional programming? Now they're back, baby. Happy to see them used again, even if we've had to razzle it up a bit with a new name.