Book excerpt: Simulated universes created by post-human artificial intelligence are a common theme in 21st century hard sci-fi. Suddenly in 2023, we're capable of realizing these literary dreams by virtue of engineering an interface for neural networks advanced enough to simulate human language and visual art beyond the ability of us average simple country folks. The technological hurdles are behind us. Now it's just a matter of concentrated effort on par with any moderately successful tech start-up or community theater ensemble. We're going to have an AI-generated simulated universe comparable to our own in complexity and accessible interactivity. This book is a guide to content creation, and to the responsible humanitarian development of such an unprecedented wonder!