Andrew Gideon writes:
Everett M. Greene wrote:

Since the scenario may be a thousand years or more in the
future ("tomorrow" on the geologic time-scale), none of us
has to worry about it in the next few days.

You didn't read the article clearly. It can take from 4,000 years to 9,000
years for the reversal to be completed. But magnetic headings could become
unreliable much more quickly than that.

I've started looking into some form of inertial platform for our club
aircraft. I figure that we may have as little as 1,000 or 2,000 years, so
I'm trying to get this fast-tracked.

Good idea. Mother Nature can be as unpredictable governments.
It's never a bad idea to be prepared for the worst-case scenario.

[Anybody want to make a wild guess as to when the FCC is going to
order termination of all analog TV broadcasting and what the
effective date will be? The earliest effective date is 1/1/07
by law but...]