"The world's longest-running webcomic" is a project I came up with.
There are 224 possible colours that a pixel can have on the internet. This means there are only 224 1x1px images. This in turn means that there are only (224)xy possible images with a width of x and a height of y pixels, and that the set of all pixel images is countable. It is a countable infinity.
This in turn means that they can be put in a 1-to-1 correspondence with the integers. That is, you can put all of those images in order. Then, you can serialise them as a web comic.
There are a variety of orderings but the one which springs to mind is to cycle through all of the 1x1 images, then the 2x1 images and the 1x2 images, then the 3x1s, 2x2s and 1x3s, then the 4x1s, 3x2s, 2x3s and 1x4s, and so on. Of course, doing this daily would take millions of years. The 1x1 pixels alone would take the best part of 46,000 years on a 7-days-a-week schedule.
"TWIRL" was a botched first attempt at this created in (according to the dates on the files) June 2005, cycling through black and white one-dimensional images only, expanding them to full comic size. At the time I created it I had no grasp of PHP and the mathematics are somewhat suspect because it instead goes through binary numbers progressively. It notionally began on the day I was born and there are fake titles for each "comic" because it's kind of a "sorry, the comics are broken" joke and it really doesn't work. I keep it here mainly because I can't bring myself to delete it and one day I may go forward and create something better from it, like a comic going through all 65,536 black and white 4x4-pixel images.
