Asimovs - April/May 2015 double issue

As I alluded to in my review of the June issue, I had to set this one aside for the time being due to losing my physical copy of the magazine. I'd been reading it during a trip to Geekopolis, the big multimedia comvention in Paris, and to the best of my recollection I must have set it down on a table during an interview and then left it there. Sheila Williams, the editor of Asimov's, very kindly sent me a pdf of the edition but that brought its own complications. I could only read it on a lap...