Revelation establishes the central realities of the basin, bridge, Paradise and Hell. Rational discussion clarifies objections; it does not require that every unseen detail conform to the usual laws of terrestrial experience.
A logical impossibility entails contradiction. Something extraordinary merely differs from familiar practice. The Sirat, the prior creation of the abodes, and the persistence of created things illustrate why the distinction matters.
Historical cosmological assumptions must be treated as such, not silently promoted into certain revelation or modern physics.