Even if it doesn't, how much time is this actually saving? If you're doing heavy work on every frame ... maybe (and you'll have to profile to figure out if it's

Even if it doesn't, how much time is this actually saving? If you're doing heavy work on every frame ... maybe (and you'll have to profile to figure out if it's worth). If you're handling a user input event, or some IO event (like in the author's example) it makes no difference at all. It'll confuse some developer (possibly a junior or co-op tasked with clearing the bug queue) down the road, and probably will lead to a bug.