From the inability of NASA and the DOD to reverse engineer their own tech from the 60s/70s, to the alleged humor that Blizzard has a bounty for anyone who can provide them with the original WoW code
Media storage is only as good as the hardware and the networks they support, time, corruption, and meat-space disruption will make it inevitable that vast amounts of data will be lost
'Internet never forgets' my ass
Yeah when I went to college the professors told us that you could make an absolute killing if you learned BASIC because of old legacy systems from the 70s but it's a godawful job and nobody could pay you enough to do actually it because you're digging through 50 years of other people's spaghetti.