In Crisis Counseling: The Finale, Dan DiDio answered a question about whether or not Linda Danvers has still been Supergirl in the Post-IC DCU's official history by giving the following reply: DD: The matrix is one of the beats retconned out of existence by the Continuity Wave. Presumably "the matrix" refers to the artifical lifeform known as Matrix, or Matrix Supergirl. And therefore fans are assuming that all of Peter David's "Supergirl" title has just been swept under the rug, never to be heard from again. Here was my first reaction to the news: I figured all along that one way or another, after "Infinite Crisis" was over I would need to do a new edition of my "Timeline of First Appearances of Each Supergirl, Superwoman, etc." in order to catch up with any retcons they instituted. This particular retcon does not come as a huge surprise. After all, it neatly answers some criticisms I've made before, regarding the way Superman, upon meeting the current Kara Zor-El for the first time, did not mention Matrix, nor Linda, nor the Kara Zor-El of "Many Happy Returns" for that matter! Because of the Retcon Punch, I guess he had already forgotten any of those three ever existed! And it's not even like this is the first time an editor has tried to get Matrix surgically removed from Superman's continuity. I am told that way back in the early 90s, Mike Carlin desperately wanted to do a sort of "quiet retcon" of Matrix Supergirl and simply never let anybody in any of the Superman titles refer to her again. So that for all practical purposes, she never would have existed! Someone -- I'm not sure who -- managed to talk him out of that, and Matrix returned to Earth during "Panic in the Sky" and ended up being seduced by Lex Luthor, but apparently Carlin went through a period where he really wanted the new policy to be "There is no Matrix Supergirl! Never was! Never will be!" Sooner or later someone was bound to try that all over again! (I don't say this is the best idea I ever heard. I only say I am not surprised that it finally happened now that DC's "Supergirl Flavor of the Month" is the Jeph Loeb's Reboot Version.) P.S. After I posted those first reactions in Matrix Supergirl threads in a couple of other forums, someone pointed out a possible corollary that I hadn't thought of. If "Matrix Supergirl from a Pocket Universe" never existed, does that mean that the whole Pocket Universe never existed? If so, that would mean that Superman never used green kryptonite to kill General Zod or the other two Phantom Zone Villains of that particular universe. Which would make a lot of Superman fans happy, I believe, now that he's never actually "executed" anyone after all!