No-one is talking about multiple round trips to the asteroid. Moving the whole asteroid at once to a more mine-able location (the bottom of a gravity well, wher

No-one is talking about multiple round trips to the asteroid. Moving the whole asteroid at once to a more mine-able location (the bottom of a gravity well, where people can actually use the material) is what I expect to be easier near term. Mass-driving from the asteroid to a target location is interesting too, but seems even more sci-fi. Frankly I don't expect to see either happen in my lifetime.