How did Luke find out?
That Palpatine’s Sith name was Darth Sideous?
shareI think Palpatine accidentally used the wrong account when posting something on the Imperial message boards and outed himself.
share[deleted]
Information archives discovered in the decades since ROTJ.
shareDoes any of the new EU show this? It's not been in the few books I've read....
shareI don't know. But a lot can happen in thirty-something years.
It's like how so many people are complaining about Leia using the Force once in LTJ, when she didn't use the Force in a physical way in the original trilogy. But in ROTJ, Luke already said that the Force runs strong in his family and that his sister has the Force too. Obviously, Luke must have taught her a little bit in the last thirty years. We don't need every little detail spelled out!
It's not needed for the movie to work. I'm just wondering if it's been covered in the new EU at all. I'm just curious.
I think it obvious Leia did some more training with the Force than we thought.
Nothing from the newly established canon gives any insight to any mysteries put forth in TFA...everything offered is clean up...this and many more unnecessarily unexplained plot points from TLJ will be covered in this same fashion...an unsatisfying one!
shareAs neat as the callback was, it's doubtful Luke would have ever called Sidious something that he never called him before, even 30-40 years later. He would have referred to him as the Emperor or just 'Palpatine'.
shareIf he was trying to stress that it was a Sith Lord, he may use the Sidious name.
As far as I can gather from Wookiepedia, nothing in the new EU specifically explains how Luke learned that name. But there are plenty of opportunities in the events he participated in between ROTJ and TFA.