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From what I've read on these forums the race or type of being Gandalf is sort of god-like immortal, like the rest of the wizards. I think I remember reading that they can't interfere in some way.

What are the limitations of what Gandalf can and can't do to alter history?

marked as duplicate by Jason Baker, TGnat, Community Apr 29 '15 at 14:41

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

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    Sidenote, you don't need to (and, I would say, shouldn't) delete questions that have been closed as duplicates. There's a reason the system puts the dupe question right at the top of the page: even if they won't have an answer on the page, they're useful signposts for future travellers – Jason Baker Apr 29 '15 at 14:33
  • @JasonBaker I guess leaving them would allow people to find these answers faster in the future. I understand I don't need to, but do you think it would be more beneficial to delete? – Clyde Apr 29 '15 at 14:38
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    It's ultimately your decision, but I wouldn't. You never know what people are going to search for (either on SE's search, or on Google), so having more paths to the correct answer is always a good thing – Jason Baker Apr 29 '15 at 14:41