one subsystem cannot increase in mutual information with another subsystem, without (a) interacting with it and (b) doing thermodynamic work.
Remaining within thermodynamics, why do you need both condition (a) and condition (b)? From reading the article, I can see how you need to do thermodynamic work in order to know stuff about a system while not violating the second law in the process, but why do you also need actual interaction in order not to violate it? Or is (a) just a common-sense addition that isn’t actually implied by the second law?
I don’t know, this sounds weird. If people make stuff up about someone else and do so continually, in what sense it’s that someone “responsibility” to rebut such things? I would agree with a weaker claim, something like: don’t be ambiguous about your commitments with the objective of making it seem like you are committing to something and then walk back at the time you should make the commitment.