
Originally Posted by
Omniscient_Jay
There are two Broyles, one native to either world. In this rewritten timeline, they are both alive and well by the time S4 starts.
A timeline refers to a specific history; in the old timeline, Alt-Broyles died because he was used in the mass balance transfer (trying to get Olivia home), whereas in the new timeline, he was not (because Olivia never crossed over in the first place).
History was rewritten due to a combination of consequences of Peter using the Vacuum machine, and September changing his choice of saving Peter at Reiden Lake in 1985; what we see in S4 is what would have happened if Peter had never lived and grown up.
And again, there is a difference between a timeline and a universe; a timeline is the history proper to a specific universe. It can be said, then, that the timeline of the Red/Blue Worlds were changed.
(As a side note, Blue World = Prime universe, and Red World = Other Side).
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