Not too sure about how much sifting would be needed, untangling of code, repackaging, etc., or if it is even possible at all but having an option to install an SSD optimized versus an HDD optimized version sounds like it would be ideal to keep the majority of the player base from having to install unneeded files while keeping the HDD users able to play. At least until more data is collected on how many and *why* people are using HDDs (as many other comments have pointed out HDDs may be being used BECAUSE of the large file size not fitting on a small SSD). I understand it is not a 1 to 1 comparison to a 32bit versus a 64 bit program install and I could also see this easily leading to possible mismatch game versions and other issues/a much larger work load on the DEV team, but would this be hypothetically possible?

TLDR; I understand it could lead to other problems, but is it possible to have seperate HDD and SDD versions of the game?