Board Thread:Warhammer 40k General Discussion/@comment-25149066-20140730083800/@comment-24944355-20140806090253

10,000 years is a long time, there were many upheavals, coups, wars, purges etc & the tech priests never knew that much about the golden throne in the 1st place, it was one of The Emperors secrets after all. It would have been very easy for what little knowledge the Mechanicum possessed to be lost over the millennia.