Unless he is preparing for the big magnetic reversal and knows something we don't...

In my text I have read about magnetic reversals.

The humans that manufactured these species degrade to simple farmers and following a magnetic reversal, were driven to extinction.

The magnetic poles will trade places during a magnetic reversal.

The magnetic reversal happens after the strength of the field reaches zero.

All of the Earth's magnetic reversals are recorded in volcanic rocks also called basalt.

The magnetic reversal and the accident played hell with our navigation equipment.

Raising my voice, I added "Jean, you told me the magnetic reversal wouldn't occur for another five hundred years or so."

And there was no magnetic reversal in the sample.

Our original dating of the burial event would have placed it in the last magnetic reversal.