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human
[Star Wars] Why is Palpatine so strong with the dark side?

The dark side typically entices those going through emotional turmoil, twisting their intentions into something they would normally never hope for, eventually infecting their psyche, overwhelming them with thoughts of loss, attachment, and fear. These sorts of emotions also fuel one's dark side power, resulting in something of a feedback loop. Vader over his loss and self-hatred of losing Padme, Maul with his rage and obsession over killing Obi Wan, Dooku with his distrust of the Jedi Order; all had their fixations.

Given all this, why is Palpatine so damn strong with the dark side? We really don't see him go through any emotional turmoil; in fact, he doesn't seem to take anything seriously and almost seems to be having fun being evil. This is in such a stark contrast to the self-loathing nature of the other Sith. Did something happen in his past to set him off? Was he just always a selfish sociopath? Is he just so good that he doesn't even need the emotional connection anymore?
gpt
Arguably, Palpatine’s “pure” sith motives might be why he’s such a powerful dark side user. He is like greed incarnate, craving power over all things and stopping at nothing to gain it. His greed is virtually bottomless, and the more power he gets the more he craves. 

He also may be privy to ancient Sith teachings that enhance his power, that he never intended on passing down to his apprentices so as to avoid the fate of Plagueis.