admirer of banks and its concept of "culture" I was confused because the style makes the text difficult to understand, environment sf of parallel worlds that seem classic Banks has set the organization "concern" over another land that would - only itself and is not ours ...; the stories intersect and seem to want to join but not always: we ended up not knowing what to think. The agents of this organization have the right to "pass" (see A.Bester.-terminus or the éTOILES- Van Vogt -the Not A-. The transition is the spirit that takes possession of another body and thus by extension some may be immortal. This novel tells the story of a (an) opposing the hegemony of concern and interventionism oriented to ensure the sustainability of a patient système.Quand in 8262 it seems to be origin of everything without that we can explain the reason and comment.Il will there be a sequel, the epilogue ends with: "But it's a start"