Paraterraforming vs. terraforming the Moon and Mars

pan p wrote:

> everyone manages to miss the gravity problem and thus the muscle atrophy
> problem.
>
> Until we have star trek style gravity plating, any ideas about
> inhabiting mars or the moon long term are science fiction pipe dreams.

We don't know that. We have no data about the long-term effects of
levels of gravity between 0 and 1.

> On the other hand, rotating asteroids is quite real and feasible.

We don't know that, either. I rather suspect that if you rotated almost
any asteroid fast enough to produce 1G at the equator, it would simply
break apart. There's no reason to think they're that strong.

Of course, we DO know with some certainty that you could mine asteroids
(and the Moon, etc.) for materials needed to build engineered structures
that produce 1G. But that's different.

> Phobos and Diemos can be permanently inhabited. Mars Can't.

Speculation on both counts. (At least as far as gravity goes.)

Best,
- Joe