Ok, first, when did George Lucas declare Darth Sidious the most powerful dark lord ever? There was mention of the emperor not dying when he was thrown down the hole by Vader? Sorry, he died, the later appearances were all declared to be Palpatine clones, and it was a clone of Palpatine that turned Luke Skywalker dark for a short period. Lucas didn't read any of the books? Well, he may not have personally read the majority of the finished products, but last I checked the Star Wars title was copywrited and all the books were at least licensed to be published by his company based on their pre-written layout. Lucas had to give permission for Chewbacca to die and his other characters that die in the series and the methods of their death had to be directly approved by him. Now as far as mention of the books and their bearing on the Star Wars universe, or at least on the Star Wars: The Old Republic universe, many characters introduced in books and species first mentioned in the books are mentioned within the gameplay. For example: Killiks, the hive minded insects on Alderaan were originally written into Star Wars lore in the books, there is ZERO mention or appearance of them in the movies (though they may be in the Clone Wars CGI animated series, I wouldn't know. So obviously the game writers have read the books, and yes as far as novel based Star Wars lore, there were many more powerful Sith than Palpatine/Sidious. Now, as far as the original post: Moving an entire planet is easy to fit into the lore based on Yoda's teaching of Skywalker, "Size matters not" so it's just a matter of perceiving the planet-moving task as undaunting and being confident in the ability to move it. Creating a black hole, much the same. If the force strong character were raised in some way without the artificial boundaries created by perception "This is big", "this is small" it really wouldn't matter, he believes he can do, therefore he can. No more stupid arguments now, kthx.