"When the Bass brothers financed the first Biosphere, that earth in a bubble out in Arizona, the trees all failed in an interesting way. All the trees in the biosphere were droopy and lacked the strength to stand upright. They grew, but were too weak to stand. They studied the problem and found the answer. No wind. The Biosphere bubble lacked any wind so the trees had nothing to make them sway. It was the swaying, pushing against an invisible yet very palpable force, that gave them the strength to grow upright, stand reaching up to the sky."