When I created Babel years ago, it was because I wanted a versatile tool, a book test with which I could perform different effects. I combined several principles and imagined routines based on these principles. Certain methodological aspects were interconnected, all the while remaining open, which promised the discovery of new applications in the future.
Babel was then used by many magicians and mentalists everywhere in the world. Some of them approached Babel with their own technical and psychological tool box, as well as their needs and wants; thanks to this, they found new ideas and new routines.
This bonus instructional PDF is free and contains some of these ideas. I am sure that you will find many more.