Memory Memoria: Ser Humano y SustentabilidadVersion en ligne Descubre conceptos clave sobre la relación entre el ser humano y la sustentabilidad. par HECTOR GARCIA Most of our ancestors lived in huts with dirt floors and thatched roofs. Today it is more like 1 in 200. Streets and alleys were open sewers. Smallpox was eradicated in 1977. They wore the same home-made underwear over and over. There were no toilets. The astonishing growth in prosperity is one of the greatest events ever. Our ancestors ate gruel Life expectancy was around thirty years. They grew most of their own food. We grow to be four inches taller than we were just 250 ago. Everything was infested with insects and rodents. The enrichment of the last centuries is the hockey stick of human prosperity Today we expect to live to be about eighty. They made a lot of their own clothing. The filth was horrible and often toxic. One in four kids would die before the age of 5. They built their own dwellings.
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