I'm currently on the 3rd book from the Hyperion Cantos. I read Hyperion and Fall of Hyperion and they've become one of my favorite sci-fi books of all time, but I have a question. (Obvious spoilers about first two books below.)
The cruciforms are revealed to be created by the Technocore to keep the necessary amount of people alive and compliant. However, from the priest's stories, the temple of the cruciform and the labyrinths where they're found are thousands of years older than christianity itself. The technocore didn't become technocore until shortly before Old Earth was destroyed so...how could they have been the creators of the cruciform if there were references to it long before the technocore was around. I know the Time Tombs travel back in time, however the books never describe the labyrinths or the temple having such entropic fields.