I had no idea you had a column on Wired UK. (Being from the States I usually troll around the US Wired page). But I looked up and enjoyed quite a bit. Consider me a new reader.
This is the problem with writing fiction in the early 21st century: the real world outdoes you for madness every day.
I really liked this from 'We're living in the last days of the Roman Empire' seeing as how this things I read about on a daily basis are often times far more fantastical than anything I've ever read in Science Fiction.
And I'm saving up for "anti-carnivorous-robot security".
I think what we need is a bioreactor where you toss in household scraps and water. Algae grows by feeding off the scraps and is eaten by brine shrimp (sea monkeys) or other larval species than can be stored at room temperature for long perods. Then a skimmer harvests the larvae and turns them into high protein food.