Somehow, the idea of writing a script that permutes the notation in a given document came up, perhaps to illustrate this viewpoint.
It sounded like a fun project, and so I wrote
permute_notation.py, a short Python script that takes a latex file and produces a copy of the file with completely permuted notation. The effects are not really surprising: usually, you do not understand your own work anymore :)
Attention: The script unconditionally overwrites
output.tex, so be careful!
By default, the script permutes lower and upper case Latin and Greek letters. You can specify the switch
-s to permute alphabets only among themselves, such that the text might remain at least barely legible.
Note: This script has been tested to work with my diploma thesis(result (PDF)). I hope that it will also work with your document. If not, just copy a latex snippet which is permuted incorrectly into the comments and I will take care of it.