[Space] Adapting to long days and other implications of a generated system

[Agemegos]

Originally Posted by Diomedes

That's what I meant; the oceans inline with the other planet will be at a permanent high tide. Any oceans on the orthogonal meridians will be shallower. And since the planets are larger and nearer to each other than the moon, they'll be very large tidal forces.

Yes, but the bulk of the planet will be at permanent high tide there too. And since it is permanent in geological terms, the mantle material will have the necessary tens of thousand of years to conform fully to the tidal equipotential. The water and the rock will be distorted to the same extent, they will conform to the same geoid. So the oceans will be about the same depth all over. Slightly deeper where the net effective gravity is lower, perhaps, but not enough so to produce vast oceans around sub-lunar point and its antipode and vast continents on the orthogonals.