Originally Posted by
K. Jones
When looking for means to dial back and backdoor old canon back into the fold, or reverse mistakes of the New 52, or just do neat storytelling cosmic crap for the future, Multiversity was surely one of the tools they used to get it done. And Morrison has always been a guy that introduces concepts that make a lot of wishy-washy canon stuff end up somehow just working.
But there's more to the story - Convergence was actually the next step in that, and Convergence, though not great, had some high concepts that were fantastic both in themselves and as means of backdooring some old continuity through to repair things. But that shouldn't be a surprise, since Convergence itself has roots in Multiversity, and since Telos was the mysterious (?) dimension opposite Wonderworld on the Multiverse Map. Ur-Brainiac and his Collection-World Telos were concepts brainstormed, partly or wholly, by Morrison, then picked up and ran with the other writers. Jeff King or whoever.