replace transportD using transport along path_sigma?

[mikeshulman]

Cleaning out my inbox, I found this suggested in an old email thread.

[Alizter]

This is essentially about characterizing dependent paths over sigmas right? I tried this a while back and got very stuck. I would have heuristically guessed something like "DPaths between sigmas" are "sigmas of dpaths". But making this precise is a bit tricky.

[mikeshulman]

Depends on what you mean by "essentially", I guess. On its face it's about transport, not characterizing dpaths.