Study confirms the rotation of Earth's inner core has slowed

[JoseBalow]

3. I have some questions about this for our resident scientists...

If the Earth's core were to stop rotating, wouldn't we lose the magnetosphere?

And if that happened, wouldn't the sun blow away our atmosphere, like on Mars?

Is it possible to calculate or predict how much slowing would be required to render the magnetosphere too weak to protect us from solar particles?

I'm also wondering, what would kill all life on Earth first, the above scenario, or our sun's expansion/supernova?

Is there enough data yet to extrapolate the rate of slowing to predict when core rotation might stop altogether, or slow it enough to render the magnetosphere too weak to protect Earth from the sun?

These topics fascinate me, I wish I knew more about it.