 (…) In "Marius" we meet Stephen Rostomily as already a combat veteran in a ravaged Europe, where even the basic necessities of life are scarce – and at that, Europe is relatively fortunate, with Russia and China having been reduced to "howling cannibals".Yet in reading "The un-man" we find that that ravaged world had been able to embark on a full-scale colonization of Mars, quickly enough for Rostomily to have spent most of his adult life there.Knowing what we know now about space programs and how much they cost, this is utter nonsense – unless, within a decade or so of the world-destroying war, this timeline managed to achieve anti-gravity or another miracle way of jumping at a low cost out of Earth's gravity well.