3 ms·

I'm not sure the premise is correct. Why can't it be coincidence?

• arcticfox 10y ago
  I suppose it could, but of all possible values, it seems exceedingly strange that they'd fall on essentially the same number. It seems much more likely that it has basic physics behind it, but I'm not sure what it is.
  • baq 10y ago
    random chance is as good as physics. the earth was hit by a mars-sized impactor allegedly, so if not for the moon, we would have a completely different day length. (assuming there would be some 'us'.)