and damocloids from the Solar System. This is only a suggestion, as ?Oumuamua might very well have lost all surface volatiles to eons of cosmic radiation exposure in interstellar space, developing a thick crust layer after it was expelled from its parent system.

?Oumuamua has an eccentricity of 1.199, which was the highest eccentricity ever observed for any non-artificial object in the Solar System by a wide margin