Could it be that we need experiences, even, maybe, a bit of adversity, to grow to our fullest? It proved to be true for the trees in Biosphere II after all. If you don’t recall, Biosphere II was the multi-million-dollar project of a totally enclosed ecosystem. What happened was the trees in the simulated rain forest grew to a pretty good height and then became top heavy and fell over. What Scientists later figured out is that the trees needed wind. They need the resistance of the wind to help strengthen their trunks. Without wind, they were weak, and they fell.