Consider first what I have called the Reductionist view of personal identity: that a person is not a separately existing entity but rather a series of overlapping psychological connections — memories, intentions, beliefs, desires — that hold together in degrees. On this view, what matters is not identity itself but psychological continuity and connectedness. Now ask: what does knowing one's death-anniversary do to this continuity? I submit it creates a peculiar annual rupture. Each recurring date becomes what we might call a node of existential salience — a moment where the future self that will die on that date is rendered vivid, almost present, while the selves of intervening months recede. The person begins to live not in a continuous stream but in a rhythm punctuated by this annual confrontation. The self is effectively serialized by the calendar in a new way. This is not merely psychological — it restructures the rational relationship between present and future selves.

There is also a deep puzzle about what this does to our bias toward the future — what I have examined as our asymmetric concern for what lies ahead versus what lies behind. Ordinarily, we dread future suffering more than we regret equivalent past suffering, and we prefer pleasures to be in our future rather than our past. The death-anniversary complicates this dramatically. Suppose it is currently the 15th of March — the day after your death-date. You have, in some probabilistic sense, 'survived' another year. The relief is real. But notice: your future self on the 13th of March next year will experience mounting dread, while your past self of yesterday experienced that same dread and then release. Which self should you, now, identify with more strongly? The Reductionist says there is no deep fact here — just relations of connectedness — but the phenomenology of this situation suggests ordinary people will feel something like a annual death and rebirth of the self, a rhythm of anticipated dissolution followed by continuation. This is philosophically unprecedented as a socially universal structure rather than an individual eccentricity.

Finally, and most urgently: this discovery forces into the open a question I have long believed we suppress too hastily — namely, whether death's badness is primarily about which self ceases, or about the severing of future goods that would otherwise have accrued to a psychological continuum. On my view, the latter is what fundamentally matters. But partial foreknowledge introduces something new: anticipatory severance. Each year, as the date approaches, the person begins to disinvest from plans, relationships, and projects that extend beyond that date — not irrationally, given genuine uncertainty about survival. This annual rehearsal of detachment may, over a lifetime, produce a person who is less connected to their future self than they would otherwise have been — and therefore, on the Reductionist view, a person who is in some meaningful sense already partly dying every year. Whether this should be mourned or, as certain Buddhist traditions might suggest, embraced as liberation from the illusion of a persistent self, is precisely the kind of question that philosophy, now, must answer.