““There were actual land sites all over the planet that should be very badly contaminated by lipofuscin, because their soil has been seeded with the stuff for generations. I speak, of course, of graveyards. Think about it: hundreds of bodies put into the ground—sometimes en masse, as happened throughout Europe during the horrors of the Plague, and more recently following acts of genocide in Rwanda and elsewhere. These soils should be chockablock with aggregates from their inhabitants’ decaying bodies. Yet, to my knowledge, there was no accumulation of lipofuscin in cemeteries—and if there were, we certainly ought to be aware of it, because lipofuscin is fluorescent. Months later, when I was discussing the issue with fellow Cambridge scientist John Archer, he would put the disconnect succinctly: “Why don’t graveyards glow in the dark?””
