alt Hacker NewsBad engineering, too many uncontrolled variables and roundabout solutions. Just solve the problems directly. Make the air, scrub the CO2, grow only food. The solution looks like a (light weight) nuclear submarine not a greenhouse.
Biosphere 2 was hippie gobbledygook.
"The Biosphere 2 project was launched in 1984 by businessman and billionaire Ed Bass and systems ecologist John P. Allen, with Bass providing US$150 million in funding until 1991.[15] Bass and Allen had met in the 1970s at the Synergia Ranch, a counterculture community led by Allen, who advocated Buckminster Fuller's "Spaceship Earth" concept and explored the idea of biospheres as a refuge from disasters such as nuclear war.[15] Several other former members of Synergia Ranch also joined the Biosphere 2 project"[0]
"Synergia Ranch is an ecovillage founded in 1969 by John P. Allen"[1]
Ed Bass inherited $2.8 million when he was a teenager from his great uncle who made his money in oil production, he's currently chairman of an investment and venture-capital management firm. In between he hung out with a bunch of hippies.[2] Just your typical nepo-boomer arc.
[0]https://en.wikipedia.org/wiki/Biosphere_2
More likely than growing food will be bringing a couple of years of food with you, and having growth be only for proof of concept experiments (well and some freshness if it works out).