Pretty O'Neill cylinders, but...

Lucio de Souza Coelho wrote:
>
> - Iceland population is small (100K inhabitants?). I suspect that, had
> the island millions of people, perhaps geothermal energy would not be
> enough.
>

They have about 250,000 people (with a literacy rate of 99.9%!!), which is
a little more than you said, but less than I thought.

All of your points are good. I had forgotten that, though geothermal
energy is available everywhere, in some cases the cost to reach and use it
is prohibitive.

Steve