Which comparative advantage does Venus hold over Mars regarding human physical requirements?
Answer
Gravity at 90 percent of Earth's standard
When comparing Mars and Venus as terraforming candidates, Venus possesses a significant gravitational advantage. Mars only offers about 38 percent of Earth's gravity, which is known to cause severe long-term health issues for humans, notably muscle atrophy and bone density loss. In contrast, Venus boasts a gravity level of approximately 90 percent of Earth's standard. This higher gravitational field is much closer to what human physiology is adapted for, mitigating the physiological 'Gravity Debt' that Mars imposes. This factor, despite Venus's hellish surface conditions, makes it appealing for long-term habitation, even if only achieved via floating cloud cities.
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