I hope this isn't an insensitive joke, but it occurred to me that Ian got to be both singular
and plural "they" this week.
An additional ten seconds could have had Ben rematerialize had the show been cancelled, so they were covered either way.
If they filmed a closing scene to use in the event of cancellation, I think they would've devoted more than ten seconds to giving the series a proper emotional finale. They would've just had to tighten up some of the earlier scenes to make room for it.
I really thought when they were talking about Al being in alive in 2018 and Magic going to give him cigars that it would turn out Martinez leaped into Al. Which would be how he then had clearance to enter the facility and we'd see Al in the mirror as Martinez' reflection.
I guessed that Martinez would jump into Magic as soon as Addison called Magic to warn him about the time traveler leaping into Ben. Conspiracy Story Plotting 101 -- whatever authority figure gets contacted with a warning is bound to be part of the conspiracy.
Speaking of Magic, I expected him to get his turn as the hologram before the end of the season, but it's a bit clumsy that his only real reason for talking to Ben was to pass along Jenn's code word. Although he did provide the information about where he kept his pen, so I guess that kind of justifies it. Pretty weak excuse to get him face time with Ben, though.
But it's a really nice bit of character writing for Jenn that she plans so far ahead that she even gave herself a code word to send back to herself in the past just in case that ever happened.
Few time travel shows stand up to any real logical scrutiny, and QL has always been one of those. Sure a "quantum bubble" could keep everyone in the spatio temporal causal nexus isolated from any deltas in the time stream during the leap (and I made a lot of that up), but then how would everyone know the changes to the timelines of everyone Ben affected, to heartwarmingly list all the good things he did at the end of a given episode?
As they said here, the quantum bubble only existed because they were messing with their own personal pasts. Magic specifically said that their memories (except Addison's in the chamber) update instantly upon a change in normal circumstances.
And Martinez / Magic and Ben / Ben visibly disappeared within the accelerator during the climactic fight. Martinez and Ben end up back in 1954, but what happened to 2018 Ben and Magic? That timeline was cancelled out, but do they still exist as quantum duplicates lost in time, with no real idea of what happened?
What I wondered was more fundamental: How was the accelerator even
working back in 2018? If it was complete enough to be capable of sending people into the past that early in the course of the project, why did they wait until 2022 to send a leaper?