Time travel is always tricky, as everyone on Lost now knows. But if it's possible, we're going to figure it out by using science and technology like Daniel Faraday, not with mystical bullshit like, well, every other uncurious motherfucker on the show.
And nobody ever talks about the bureaucracy that would surely grow like weeds around something as potentially volatile as time machines (depending, of course, on whether you believe in the many-worlds interpretation or the immutable alchemist's gate). Well, nobody except Connie Willis. I love Connie Willis.
Read "The More Things Change" at 512 Words or Fewer