Gregory Benford's 'Newton Sleep' is an intriguing story. It's in effect a scientist's riposte to Philip Jose Farmer's 'Riverworld' series, in that Benford's protagonist, who finds, rather to his surprise, that the after-life for him is a literal hell, peopled by famous names from the past, but who determines to address the underlying science behind the world in which he finds himself. Furthermore his protagonist is the same scientist from his novel 'Timescape', who meets Sir Isaac Newton and finds, to his disappointment, that this hero of his has eschewed any attempt to treat the world they live in as a rational universe, but as one rather as ruled by astrological portents.
A strong selection of stories, which stand up well some 20 years on. You can check out how this content matches that of other volumes covering this year : Dozois' 4th, Wollheim #1987, New Hugo Winners #1