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It was action-packed, and raisedseveralmajor questions, beginning with …
So whoisCaleb Nichols?

Yeah, they were completely valid.
Hes way more scared of him than he even is of Dolores.
What did he find out about Caleb when he scanned him?
Is it as simple as the theory that hes a host?
Did he see Teddys arc, or even Hector?
Is Caleb one of Seracs outliers?
Wheres Seracs brother, and that whole facility for that matter?
We see Seracs brother basically in a near-catatonic state in a flashback.
(Serac must have been monologuing to Dolores a long time, by the way.)
Is he still there?
And what about all his buddies?
In the first two seasons, Dolores freed the hosts from their captivity.
What happened in Paris?
But dont you wonder how the city of lights ended up destroyed in the first place?
Is Caleb falling for Dolores?
Could they turn Caleb into the new Teddy?
And what if the old Teddy is still around?!?
Yes, hes probably not, but you never know on this show.
Why is Bernard the only one we cant replace?
Dolores seems to need no one but multiple versions of herself … and Bernard.
Didnt you kind of want the last genre to be animated?
How awesome would it have been to watchWestworldbust into someHeavy Metalchaos?