The passage discusses the history of animation. It begins by noting that animated movies have changed a lot over the last 100 years. Winsor McCay is identified as the father of animation, creating films in the early 1900s by animating them entirely himself through a labor intensive process of drawing each picture separately and having them photographed individually to create films. Modern animation is much more efficient, using computers to draw characters and backgrounds, which can then be manipulated more easily than hand drawings. While computer animation has advanced significantly, some feel it has lost the personal touch of early animators like McCay who drew each frame by hand.