There's a (not so visible) info button top right. It says:

    cachemonet is an exploration into the serendipitous collisions that
    occur between two randomly generated arrays. the arrays contain a mix
    of custom and found .gifs sourced from tumblr and are set to
    music. the output is autonomous, generative, art made possible through
    curation & code.

I'm so delighted you guys are discovering this for the first time. It's been around for a long time. I think I first saw it in 2011.

You're the man now, dawg.