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The woman was fortunate to have survived. Today's people rely on technical civilization, but our civilization is very fragile.
There is a great deal of natural disasters that have already experienced a lot of land - a solar eruption or the explosion of a super volcano
Change of magnetic field and it is after civilization.
Knowing how to survive without civilization can mean the difference between life and death.

Yes, disasters hit all over the globe every year. We need to keep ready for when our turn comes. Also a global disaster is likely at some point, it is good to keep the old ways, just in case.

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