Walking across a carpet can generate up to 35,000 volts of static electricity. This is enough voltage to produce a visible arc about 2.3 inches long. 50 volts of static electricity is enough to 'kill' small electronic devices, by the way...
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The mere fact that science may not yet adequately explain an object, event, or experience does not mean the immediate explanation should automatically default to a conspiratorial, extraterrestrial, paranormal, or supernatural cause.