Board Thread:Warhammer 40k General Discussion/@comment-27572696-20160118161756/@comment-4851119-20160325190225

It's possible that the Inquisition actually did crack time travel, and then promptly screwed it up on a grand scale. The Ordo Chronos, which dealt with time-related Warp shenanigans, are implied to have retroactively deleted all of its active agents.