[KarlInOhio]

93 million years ago Alaska was equatorial, not because of continental drift, which isn’t happening, but because of pole flip. The pole, either north or south, hard to tell, was in what is now the Amazon.

Ouch! That made my brain hurt. How can you apply that much angular momentum change to the Earth to get it to spin around Brazil without turning it into a new astreroid belt? And where does that amount of force come from?

[RightWhale]

The planet is not stable. This is also not unusual in the solar system. Every once in a while a planet shifts around until it is more comfortable. Earth is looking a little uncomfortable right now come to think of it.