Japanese indoor farm

We've occasionally had discussions here about the practicality of
agriculture under artificial lights. I've argued that it's much easier
(and probably much cheaper in the end) to turn sunlight into
electricity, route it wherever it's needed via cables, and then grow
your crops under artificial light, than to reflect and pipe natural
sunlight where it's needed.

As a new data point, check out this big new indoor farm in Japan:

http://www.gereports.com/post/91250246340/lettuce-see-the-future-japanese-farmer-builds

Key points:
- Lettuce grows 2.5 times faster than in an outdoor farm.
- Waste is reduced from 50% to 10%.
- Productivity is 100X that of the outdoor farm.
- Uses only 1% as much water.
- Lighting uses LEDs from GE specifically tailored for growing.

I expect this sort of thing to catch on here on Earth, and it seems to
me a fair model of what agriculture in space will look like, too.

Cheers,
- Joe

P.S. High Frontier version 0.06 came out today! But it doesn't have any
food simulation yet. That'll come, er, around version 0.14 I think.