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