Great Maxwell! I always enjoy reading about this. Was it with you I discussed that topic months ago?
Note that in the picture :"A zoomed in picture of the DSPG Apparatus", I would replace the single blob representing 2A molecules by two distinct blobs, on the S1 side. This will make it easier to understand.
Personally, I would like to wait and see for an experimental confirmation. And even if this is true, there must be another explanation. There are few principles that I am not ready to send to the bin, like energy conservation. the second law of thermodynamics. etc.
RE: Maxwell's Zombie: Duncan's Perpetual Machine