Essential mourning, as Meillassoux proposes, is the ‘completion of mourning for essential spectres’. (Collapse iv, p. 262) Yet what are the ‘essential spectres’? They are ‘those of terrible deaths: premature deaths, odious deaths, the death of a child, the death of parents knowing their children are destined to the same end – and yet others. Natural or violent deaths, deaths which cannot be come to terms with either by those whom they befall, or by those who survive them.’ (ibid) Essential spectres are begotten by those terrible and unjust deaths which could not be mourned properly by either religion or atheism and hence, cannot leave the world of the living so as a result they simultaneously suffer and drive the world of the living into a despairing morbidity or ‘hopeless fear’. Accordingly, the essential spectres should be mourned (‘by the living’) properly, that is according to the divine inexistence as an alternative to the depressing dichotomy of religion and atheism which cannot appropriately address both the wanton evil and the indifferent negligence of God:

We call spectral dilemma the aporetic alternative of atheism and religion when confronted with the essential spectres. (Collapse iv, p. 265)

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Meillassoux’s essential spectrality restricts the operation of speculative justice, for it – contra Artaud – delimitates the presence of cruelty only in the death of those ‘who obstinately cast off their shroud to declare to the living, in spite of all evidence, that they still belong amongst them.’ (Collapse iv p. 262) This rigid delimitation of cruelty respectively restricts justice not really to the dead who are seemingly supposed to be liberated by essential mourning but to the living for which the spectre marks an instrumental correlation with death, their own death. If the essential spectrality of the hauntology surreptitiously testifies to the life of the living through a neurotic or negative bond, then doing an essential justice to the dead by this assumption that cruelty is only limited to those of terrible deaths also contributes to the living. In other words, a justice in terms of the law of the living is a justice to the dead but ultimately for the living. The dead in this sense is liveware (the instrument of the living). The reason for this undercover instrumentalism present in Spectral Dilemma is that the relation of justice to cruelty is one of a decisional collusion because the locus of cruelty is purely a decisional one. If as Artaud (and Deleuze in Difference and Repetition) suggests that cruelty is at base of every determination, then life as the first decisional determination (especially as accentuated in essential mourning) is itself an inexhaustible source of cruelty. It is in properly tackling with the cruelty of life qua its purely decisional determination that we can break apart from the instrumental approach in regard to the dead and bring about the cruel reign of a speculative ethics of justice. Only by a philosophy of cruelty that sheds a dramatic light on our equivocal inexistence (why is it that I am living while I am already dead?) and the precariousness of life’s ontological decision for and by the living can the cruelty of the speculative reunite with ethics.