Hyperbole aside what can actually be said doesn't make great bumper sticker advice: functions shouldn't be too long because that's hard to understand, but they

Hyperbole aside what can actually be said doesn't make great bumper sticker advice: functions shouldn't be too long because that's hard to understand, but they shouldn't be too short either because that's also hard to understand. I think a decent rule of thumb is if it doesn't fit on your screen it might be too long.