Based on aligning testimony it appears there are at least five others who are from the same dimension. However, this is an imperfect analysis as some of this testimony regards my host's future. It's perfectly plausible that we are the odd ones out and there is some unknown divergence between our world and theirs. It's also plausible that none of us are from the same dimension, as any small variation in circumstances can indicate some sort of dimensional shift.
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