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AnthonyC comments on Harry Potter and the Methods of Rationality discussion thread, January 2015, chapter 103 - Less Wrong Discussion

7 Post author: b_sen 29 January 2015 01:44AM

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Comment author: AnthonyC 02 February 2015 10:21:49PM 0 points [-]

In that scenario he could become a closed timelike curve: go back, become the being that invented magic in the first place, and program it to record the brain states of everyone at every moment in there lives for future recall given a spell or ritual that he would then know. This could also explain the "Atlantis erased from time" business. It would rely on magic changing the laws of physics in a way that allows magic time travel to operate before magic existed - or for the invention of magic to have happened outside the timestream.