<https://www.17thshard.com/forums/topic/22034-shards/#comment-210549>
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"The problem is that this assumes the Shards pretty much split into eight pairs of opposites, and that we have no data on.  You're not alone in this line of speculation - I've wondered the same myself - but I can't help but think it's not as simple as complete opposites, yet the possibility does exist that there could be. "
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