Thoughts on Fringe Season 4 Episode 6 And Those We've Left Behind

I've officially stopped blogging regularly, so I'm just going to point something on last night's Fringe episode.

What's most interesting to me is Peter basically admitting that he doesn't belong and will try to get back to his own world. Are the writers considering sending him back to a perfect world, where Walter and Olivia know him? If not, there are still enough episodes left in this season, probably the final, for Peter to get reacquainted with everyone.