A viewer proposes a closed chemical cycle for a spacecraft with effectively unlimited energy. Carbon dioxide, water, and other oxides could supply recovered oxygen, with leakage determining the need for replacement material. The reply accepts that chemical recycling could work. The remaining preference for plants concerns air that smells and tastes better.
Notable Point · 2:09:52-2:10:17
Chemical oxygen recycling and the preference for plants
A chemical oxygen cycle is accepted as possible under a viewer's abundant-energy assumption, while plants remain a preference for air quality.