Not inability to own resources. Its the system that demands profit while theres no profit in preserving the earth.
Nobody figures out how to own school fishes, so everyone compete for the remaining fishes. It's a tradegy of the commons situation.
It is a transportation problem, not a resource allocation problem. Not enough infrastructure, no market institutions, no speculators, etc.
About the asteroid. We don't even go to the fucking moon anymore because now its not a penis race and its not profitable. And your alarm clock could now be reprogrammed to guide us there.
* kiba points to SpaceX.
