I don't see what's wrong with fermented weed, the best things in life are fermentation products :)
I highly recommend some kæstur hákarl and some skyr!
Again we need to separate 2 things:
Energetic efficiency, and commercial feasibility.
The videos explains quite well in my opinion why it would be both energetically and environmentally better to grow crops outdoors and drive them several hundreds miles in a truck to urban centers for...
Here's a very nice lecture, if you're interested:
This is just a glance, but he talks a little about numbers.
Bruce is a very nice guy, I met him once in a conference when I was still working on my PhD.
Purely in terms of energetic efficiency all current scientific evidence is showing the opposite, for most latitudes.
In terms of financial feasibility, market economy and supply and demand, indoor farming can be, and is still very feasible, for a large number of crops.
Those are very different scales though.
Pound per pound, in most latitudes a climate controlled greenhouse will always be more efficient than indoor.
Whatever design and technology you apply to your grow room you can also apply to your greenhouse, and use it less than half the time.
What's...
Growing rooms running on solar is a terrible waste and very foolish.
If you have enough land and money for a solar array and battery bank you might as well grow in a greenhouse.
The sunlight's price is hard to beat - it's free.
The only reason to grow indoors is extremely hostile climate...
I don't really think there's much to tell, just google UK cannabis and this is what you find:
http://www.dailymail.co.uk/news/article-1329018/Pictured-Britains-biggest-cannabis-farm--2m-worth-weed.html
8000 plants in one farm.
http://www.gq-magazine.co.uk/article/cannabis-farms-london-vietnam...