View source for Survival of our species/Preserving knowledge

[[Image:British Museum Reading Room cropped.jpg|180px|right|British museum reading room]] Think of all the knowledge we have gained since the stone-age {{en}} all our writing systems, mathematics, agriculture, medicine, science, engineering, social systems and so on. It needs to be pretty well looked after, and able to survive huge catastrophes.
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If for example there was a large asteroid strike with 95% of the human population wiped out and the environment degraded for decades, the last thing the remaining people need is to be plunged back into another stone age. A large asteroid or comet strike happens rarely, but the consequences are so dire that we must prepare for it.