I like this idea, that Jacob was watching all the flashbacks. Jace thinks that we've known about Jacob's little house of mirrors all along. He guesses that the flashbacks we've seen throughout the series have actually been Jacob watching in the mirror, similar to how Smokey seems to scan and "download" information from people he comes across. He also points out that Claire appears to be able to differentiate between Christian and Smokey, and that Christian's body is still missing. So who's Christian? [Televisionary]
Its a retcon similar to the one in the Matrix Reloaded, where all of the Architects TV screens were the same as the monitors seen when Neo was being interrogated in the first movie, hinting that the Architect was watching him all along.