Quote Originally Posted by Dark Shadow View Post
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It does not explain any of that, from what I can remember. However, I believe he was likely cloned due to his... particular disposition. Given that he has a view of Force User superiority and
Spoiler: Outbound Flight Ending
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near the final confrontation, he Force Chokes Thrawn, so he's definitely heavily skirting the Dark Side, if not beginning a plunge.
Seen from the point of view of his apprentice, who can sense his thoughts:

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he outright took the plunge in that confrontation.