Nice article and as others have commented, love the simple and clear aesthetic of the gifs within!<p>This is just the entrance to that rabbit hole though; for anyone interested in continuing the journey all the way down I'd highly recommend: <a href="https://github.com/leandromoreira/digital_video_introduction" rel="nofollow">https://github.com/leandromoreira/digital_video_introduction</a>.
The image that tries to illustrate how frames per seconds affects motion is wrong. At least in my browser, it is crossfading between images in the 30 and 15Hz illustrations. That's not how video works: you show individual images sequentially with no mixing. Simplistic attempts to "improve" motion are universally worse than leaving it alone.