''Opus Postscriptum'' differs from John O''Loughlin''s official written oeuvre in that it is comprised of revised and reformatted weblogs by him and is therefore supplementary to the works which came to a head with ''Jesus - A Summing Up'' (2005). Most of the essay-like ''supernotes'' of the two books that constitute this estimable eBook volume, a kind of ''magnum opus'' if you will, were written during 2005-6, and are therefore constitutive of John O''Loughlin''s early ''post-Centretruths'' projects, supplementing his ideological approach to philosophy with fresh ideas and new logical permutations that, unlike the title, owe little to one of Henry Miller''s better-known ''posthumous'' publications.