Yes -- the paper is just wrong, lots of other people have also done this calculation and shown that it's off by multiple orders of magnitude. Robin Hanson clai

Yes -- the paper is just wrong, lots of other people have also done this calculation and shown that it's off by multiple orders of magnitude. Robin Hanson claims the particular error is the paper's assumption of zero pressure: https://www.overcomingbias.com/2021/03/what-holds-up-a-north-pole-of-dust.html https://www.overcomingbias.com/2021/03/what-holds-up-a-north... Note that what the paper refers to as "gravitomagnetism" is more commonly referred to as "frame-dragging": https://en.wikipedia.org/wiki/Frame-dragging https://en.wikipedia.org/wiki/Frame-dragging