[josephcar]

This is similar to steganos (https://github.com/fastforwardlabs/steganos), which tries to limit itself to changes that do not change the meaning of the text.

[m4xm4n]

Oh, very cool! I like the data model for the changes. I've been thinking about adding an analysis pass using something similar to make it possible to implement more sophisticated strategies. The tricky bit will be retaining the stream-based approach.