Asteroid mining question

Hi!

I've a question relating to asteroid mining.

Reading some of the earlier discussion of asteroid mining, in the
works of Pournelle and other writers, I've read quite a lot of
speculation suggesting that it would be relatively easy, energy-wise,
to move an asteroid into Earth orbit.

None of these authors can be faulted for not knowing, as we do now,
that many of those small asteroids are rubble piles or otherwise
fragile. One thing does leave me puzzled: How did they plan to get the
mineral resources in these asteroids down to Earth? Or did they not
plan on that at all?

All the best,
Randy