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Magnetic Field's Importance
- Earth's magnetic field, generated by molten metal at its core, shields us from cosmic radiation and helps maintain our atmosphere.
- The magnetic poles flip every few hundred thousand years, weakening the field and potentially disrupting satellites.
Pole Flip Concerns
- While a pole flip could disrupt modern life reliant on satellites, it's a gradual process over millennia.
- Life has persisted through past flips, suggesting it's not an extinction-level event.
Sleepwalking Anecdotes
- One sleepwalker threw a TV at imaginary intruders, mistaking a red light for a sniper scope.
- Another sleepwalker showered his dog, believing it was on fire, highlighting the altered perception during sleepwalking.