So the big news in the past couple weeks has been the return of Peter Bishop from the time-erased oblivion he was consigned to at the end of season three. Except that, with last night's episode, I'm starting to wonder if this really is "our" Peter. Or is he actually a version of Peter from a universe we've never seen before, in which many things are the same as the one we witnessed for three seasons?
The main thing that stuck out at me, watching "And Those We've Left Behind," was the fact that this version of Peter seems a lot more scientifically acute than the old version. Sure, the "original" Peter was able to decode a shapeshifter's data disc without too much difficulty, but he generally left the hard science to Walter. Now, not only can Peter decode a data disc from a type of shapeshifter he's never seen before, he can also turn on the shapeshifter's "lojack" and pinpoint her location (in last week's episode.)
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