not much good discussing from whence it was exfenestrated

If you're intersted in stopping future elephants from landing in your deck chair, it's *very important to discuss from whence it was exfenestrated[sic]. While comparing deaths in a normal winter with deaths in a severe winter is a good way to get a first order estimate of the deaths caused by "the winter," it can be inaccurate if there was, e.g., a big flu epidemic that would have happened regardless of the severity of the winter. Possibly more people would have died from the flu epidemic in a severe winter, but perhaps many who died would not have if they had been house-bound by the severity of the weather during the epidemic.