Can the inner core of the Earth remain stationary?

• What does it mean for our planet when the inner core of the Earth rotates more slowly?
• Can the rotation of the inner core of the Earth come to a halt?
• Does it affect our lives when the direction and speed of the inner core's rotation changes?

Gerd Steinle-Neumann answers these and other questions in an entertaining interview with GEO magazine, explaining the findings of a study on the slowing rotation of the Earth's inner core, published in Nature, to the general public.