I remember when "mystery meat navigation" was a phrase and viewed very unfavorably. From what I heard, this was the reason Apple only shipped their mouse with

I remember when "mystery meat navigation" was a phrase and viewed very unfavorably. From what I heard, this was the reason Apple only shipped their mouse with a single button for so long. They didn't want developers to hide things away in right-click menus; everything should be somewhere else and discoverable by looking at the UI. Shipping with a single button mouse, even when they supported right-click, was a way to force developers not to get lazy with it, since they couldn't count on users having a right-click on their mouse (or knowing control+click was a thing).