Just in case you missed the subtle question mark of help in the top right corner, the author's explanation here is stunningly clear: https://github.com/aatishb

Just in case you missed the subtle question mark of help in the top right corner, the author's explanation here is stunningly clear: https://github.com/aatishb/patterncollider#readme https://github.com/aatishb/patterncollider#readme Kudos to aatishb. I've been fascinated by this generations since approx 1995 when there was a webpage at a university with webcgi script to transmit the params to a server to render a .gif. I've read many explanations since then, but it's only this time around that I get it!