I went into this expecting to see a bunch of precompiled randomarts manually tiled to create a composite picture. I was not expecting to learn the simple rules

I went into this expecting to see a bunch of precompiled randomarts manually tiled to create a composite picture. I was not expecting to learn the simple rules that underpin how randomart is generated for a hash and then to see the author discover hashes that roughly match the goal. Happily surprised! Very cool to read.