You need to consider the costs associated with in-orbit mining and then de-orbiting the material before declaring terrestrial mining dead. Those are big unknow

You need to consider the costs associated with in-orbit mining and then de-orbiting the material before declaring terrestrial mining dead. Those are big unknowns at the moment. It might only be useful for in-orbit manufacturing, which is also a near complete unknown at this point. Pretty exciting for anybody contemplating building massive orbital stations.