Lars Brinkhoff leads an effort to emulate and restore the PDP-10 ITS. It’s an ongoing effort but a couple of months ago they got the 1978 version of Zork up and running. So there is a possobility to test your thesis that it was possible that the BINF!-FLAG worked in real MDL. I think I’m gonna test that later today.
It’s not possible to test this in my reconstructions of the 1977 or 1978 versions because I used your implementation of SAVE/RESTORE (of the whole workbench) in these.
Nice hearing from you! I find your Confusion amazing and quite an achievment.