Artificial Biospheres In Space

--- In spacesettlers@yahoogroups.com, Andy Goddard

> After all, it's impossible to model some fundamental Earth
> processes at the scale of the largest O'Neill colonies (such as
> the tectonic subduction of carbonates and recycling of those
> rocks), so why bother trying to achieve it?

??????????????????????

I don't recall ever coming across any proposal that sought to
replicate plate tectonics within an O'Neill cylinder.

What are you trying to say?

TangoMan