Good point, but not completely accurate: the speakers and the typewriter (both the keyboard and the printer components) do not fit in a pocket with the same per

Good point, but not completely accurate: the speakers and the typewriter (both the keyboard and the printer components) do not fit in a pocket with the same performance. And if we consider that “fit in your pocket” probably means a smartphone (file name: smartphone-replaced.jpg), both keyboard¹ and printer are missing completely. ¹ I know rare exceptions exist, and own some of those phones with keyboards which are still not as effective as a full-size keyboard.