Everything becomes F A rather well presented ybpxrq ebbz zheqre mystery puzzle. In retrospect, I'm pretty sure that all the information needed to understand what is happening is available ol gur svsgu rcvfbqr or so, though I did not piece it together until much later. On rewatching, you realise there is a lot of attention to detail.

Also, the ending features Life in Life and much Lisp; gotta be a good thing, right? ;)