One of the small but brilliant things about the Mac for the last 40 years is the way a menu item blinks after you click it, to reinforce which item received the click. Windows didn’t have this. You probably don’t think about it.

It’s an affordance like this that demonstrates the care that went into the UI.

It’s the kind of thing people would be too lazy or thoughtless to do today, and it’s the kind of thing I could see Apple killing because they forgot how important stuff like this is.