The genetic analysis estimates that the D2 denisons into bread with each sapiens in Papua roughly 30,000 years ago, which suggests they outlasted the Neanderthals by some 10,000 years.
Armed with this bleak but comforting philosophy, Denison packed his formulas and proofs into a briefcase, slipped a two-ounce bottle of the product into a jacket pocket, and left his Riverdale laboratory.
From the top floor of St John's, looking out over the gathering morning light, it made me happy to think of Mr Denison convalescing next door, enjoying this same view.