So, bit of a wee problem back in Epistolary Experiment (24/30). It appears that I do not know what I thought I knew about black hole accretion disks. Or rather, I did know it, with the minor issue that what I knew turned out to be, well, bollocks.
The researchers responsible have been sacked.
Many thanks go to James Sterrett for catching this one, and especially for catching this one before publication.
…aaand now I’m off to send it and the draft of part 27 back to rewrite.