We think of the universe as mostly empty space, while the world around us seems pretty solid. But at the atomic scale, the earth is similarly full of voids. The inside of every atom is almost entirely empty space. If it were somehow possible to compress your body so that all the space was removed you would be smaller than a grain of salt, yet you would still weigh the same. If all 6.6 billion of us were similarly compressed we would fit into something the size of a tennis ball… But, seeing as we’re massive fat gassy human voids and not heavy little grains of salt, we’re starting to worry about our rapidly increasing numbers, relative to the unchanging surface area of the world… In 1930, 2 billion people existed. In 2000, 6 billion people existed. Now, we’re on about 6.6 billion. If that’s not sufficiently alarming for you, go and have a coffee with Al Gore or something.

Anyway, I did some pretty tough calculations (total earth surface area: 510,072,000 km sq divided by total land area: 148, 939,100 km sq), and worked out that if life was fair, and land space was equally distributed amongst all the people in the world, we’d get about 226 m sq each (shame shame if you get a bit of dry-up desert). Then I asked some buds what they’d do with theirs…

Julian Velard, singer / songwriter: I would build an amusement park fo sure. Something private with lots of rides... wait that sounds very Michael Jackson. A water park. With paddle boats and a volcano. Maybe a ranch with Hippos. Okay now I sound really MJ-ish.

Johnny Manning, keyboard player, Captain Black: I'd move Camden Stables Market brick by brick into my space so that no idiots could tear it down to make way for some pathetic new shopping centre, but I would insist that I got free clothes and Chinese food in return.

Daniel, manager, Los Muertos: I would super glue the whole of my space then I would get Kate Moss and push her onto it. Stuck forever. Boom, and the model was mine.

Sarah Harris, journalist: I'd build a 226sq m feather bed and host the world's biggest orgy. Of course you're all invited.

Katie Campbell, film producers’ assistant: I would build either a wooden beach hut with decking and scrabble (and running water and a double bed and kitchen), or a miniature zoo furnished with Fallabella ponies, dwarf rabbits, midget zookeepers and marmoset monkeys (they are the size of your thumb).

Laurie Reginald Osalmundewade-Shenoda, DJ Shenoda: Probably just plant loads of butternut squash, watch them grow and then throw them at the idiot in the 226 sq m land next to me.

Emily Freud, Emily Dates: I'd recreate the 'Goodlife'... build a house, plant some veg and flirt with the guy in the plot next to me so we could join forces and have 452 sq m.

Carl Faure, DJ / producer, Catskills Records / Hypercolour Records : I'd build an Earthship ( www.earthship.co.uk ) which is totally off the grid, produces all its own electricity, processes all its own water from rainfall, and is built half way into the ground in order to maintain a stable temperature throughout the year. I'd set up a nifty little Permaculture design farming system around the Earthship to grow all my food ( http://en.wikipedia.org/wiki/Permaculture ) And then I'd sit back, wait for Peak Oil, and watch everyone else fry!! ( http://en.wikipedia.org/wiki/Peak_oil )

Natalie aka MissOddKid, MC / Producer: Is that enough room for a farm? Or a little Noah's ark? If so, that’s what it would be... Me and my animals... Hahaha!

Faze, DJ / Writer, Mucha Marcha / INQ Magazine: I'd build a vertical farm ( www.verticalfarm.com ) that used a hydroponics based system for farming. A multi-tiered vertical farm obviously. One for growing food. One for growing other stuff (vegetation, 'herbs' etc). And the top floor would be where I lived - Swiss Family Robinson Style up in some big trees. The top of it will have a retractable roof, which will be open at different times and the rainwater will filter down through the tiered tower to water the growing stuff below, using a complex drainage watering system. A system of mirrors will maximise the light reaching the lower levels. And obviously the energy will be provided by as many natural sources as possible. Large wind turbines will sit atop the tower. I can see it in my head!!

Roxanne Houshmand, PA, Katharine Hamnett: I’d build a farm with an organic vegetable patch… a strawberry field and a vineyard… a chicken shed, a fit boyfriend and 5 kids - 3 girls 2 boys… a beach nearby and a sailing boat… ummm and a bank, The bank of Roxanne... a pan-Asian restaurant… a swimming pool and tennis courts… cottages for my mates to stay in and a little club that converts into a cinema… Oh and a mini zoo with tigers that have cubs. Just realised I will need a huge sky scraper...

Anita aka TheCocknBullKid, MC / singer / producer: I'd make my own miniature town, I'd be owner of it. All my friends would live on it and we'd never leave or meet people outside the town - kinda like in Albert Square. It'd be like a silly members only town.

Alexander Claire, Los Muertos: Raise sheep and grow potatoes.

Sam Benjamins, Mucha Marcha: Wouldn’t work...what about the people who got a piece of the Sahara, or Arctic... I certainly wouldn’t be sharing my piece of lush English countryside with some scavenging punk from the snow.

I think we’ll stop there, now Sam’s ruined the whole fucking thing. Way to go to shit on a shared dream...