kilemall
SOC-14 5K
In a meta sense (out-of-universe) they already are. What Marc does with them is up to him -- and that too, whatever it happens to be, will be a manipulation of the "reality" of the OTU.
This sort of thing has already happened in-universe. Book 5 literally changed the OTU's laws of physics! Inexplicably (from within the game universe) Jump Drives became smaller (and some civilizations who had mastered Jump-6 could no longer even comprehend Jump-4*) while Maneuver Drives became huge, and the largest conceivable starships were suddenly dwarfed by fleets of enormous vessels that apparently had been there all along without anyone noticing. Out-of-universe, it was simply an addition of a re-balanced and expanded rule set to enable battles between massive interstellar fleets because it'd be an interesting game. In-universe, it was a fundamental change in the way the universe functioned.
* LBB2, J-6 was available at TL-12 (Comp Mod/6 was the constraint); HG, J-3 was the maximum for TL-12 (constrained by the TL requirement for J-Drive rating).
Hmm, may have missed my multiple postings on the IMTU explanation, so I'll recap.
CT and HG drives live quite happily together without reference to some sort of reality displacement, because they are different engineering disciplines and goals, not a physics change.
CT drives are an TL ISO-type standard, plug-compatible drives that are cross-TL, durable rugged simple designs proven over hundreds or thousands of years. Any TL that is interstellar can make them with the right facilities and industrial capability, without necessarily being able to have invented/designed them if they were isolated. EXACTLY what an ongoing civilian shipment/passenger transport needs over the long haul.
Think for RL example standard diesel engines that are used in locomotives AND tugs AND coastals AND trawlers AND land-based power generators.
HG drives on the other hand are high performance custom drives, one-offs, big transports/liners servicing high value dedicated routes, and warships. They require support at or near their TL as they are NOT standardized parts (an extrapolation off TCS).
Think RL nuclear carrier/submarine, or container/tanker ships with multi-story power plants.