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https://www.google.com/amp/s/www.scientificamerican.com/article/why-earths-inner-core-may-be-slowing-down/?amp=true
The Earth's core is slowing down an may reverse directions according to studies. But, it's ok, the core goes through cycles where it changes speed. Sometimes it travels faster than the mantle and crust. Sometimes it travels slower. There are thoughts it could affect the way the entire Earth spins and thus affect the planter's magnetic field, but not in such a dramatic way it would affect life on the surface. In other words we still don't need these guys and gals....
The Earth's core is slowing down an may reverse directions according to studies. But, it's ok, the core goes through cycles where it changes speed. Sometimes it travels faster than the mantle and crust. Sometimes it travels slower. There are thoughts it could affect the way the entire Earth spins and thus affect the planter's magnetic field, but not in such a dramatic way it would affect life on the surface. In other words we still don't need these guys and gals....