Good article! I am surprised, however, that the Quantum Mirror in "There But for the Grace of God" and "Point of View" is not mentioned. Pulling a character from an alternate reality and putting him/her is sometimes done in science fiction (mind you, I'm thinking of William Shatner's Star Trek universe where he did do that with some characters). We got to see Kawalsky again. :-) I'm still placing a few cents on a bet that is how Janet Fraiser may return one day ... Given that there is no Janet in one reality and another crosses over, maybe that "problem" of having two Sam's won't happen.
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