I wanted to recommend two books I've read recently which should be of interest to those on this list, although they have nothing else in common aside from very similar titles.
One is THE IMPOSSIBLE BIRD by Patrick O'Leary, who has occasionally contributed here. It's well-written, imaginative and thought-provoking, and covers some of the same fictional territory (in a different way) as "Forlesen," whose ending O'Leary quotes explicitly. But O'Leary's book has, in a strange sort of way, a happy ending, or at least a final redemption, which Wolfe's story lacks.
The other is THE IMPOSSIBLY by Laird Hunt (published by Coffee House Press). This has no connection to Wolfe whatsover, and is not even sf, but fans of non-chronological storytelling, narrative ellipsis and unreliable narrators (which I imagine most of those on this list are) should love it. Its prose is very reminiscent of Flann O'Brien, which bits of Beckett thrown in; in fact, I was surprised to gather from the dust jacket that Hunt is apparently not Irish (though it's not stated what nationality he is).
--Adam