Everybody dies eventually. So if eight billion of us die in the next four weeks is that significant? All this sleeplessness plague could do was align those billions of inevitable deaths into a slightly narrower window of time - a matter of efficiency, not tragedy. If, during any one of a million previous nights, a giant asteroid had smashed the earth into gravel while we all slept, would it have mattered? With no one left to mourn the wreckage, one could even argue that it wouldn't be a bad way to end things at all: egalitarian if nothing else.