It's more impressive to have it running on your browser, with infinite levels of nesting, both "in" and "out": https://oimo.io/works/life/

Someone shared this yesterday and I didn’t get what what’s interesting about it. It just looked like a normal GoL simulator. I didn’t realize you could zoom in and out. This is so cool. Thanks for sharing.

This site is extraordinary...

Damn that's a clever implementation!