There are some ancient relics from back before the humans went all culty and actually knew things. Those relics are shit like moon sized battle stations and guns that shoot blackholes (slightly backwards through time so their percieved arival is instantanious). All the stuff like city sized mechs and tower block sized tanks used to be fodder tier standard troops. So actually encouraging the humans to know things or think critically is just about the worst thing the elves can do considering the human state is really xenocidal.