<p dir="ltr">On Dec 7, 2015 11:33 AM, "Tara Maya" <<a href="mailto:tara@taramayastales.com">tara@taramayastales.com</a>> wrote:<br>
> We might not need it for mining at all, as mining might be done in space; farming seems a much more likely use of a planet.</p>
<p dir="ltr">That depends on how cheaply greenhouses on non-planetside colonies can be set up. Farming on Earth benefits a lot from vast areas of farmable lands having already been set up for free - so far as human effort is concerned - but the price is wildly varying climate and soil conditions. Ask any farmer what they would give to be able to control the weather on their farm, timing the storms to the minute and setting the temperature to within a tenth of a degree Celsius, things that would be trivial (so long as they don't use more power and water than available) in an orbital greenhouse.</p>