The PnL test is formal: if the premise that humidity makes a climate universally unbearable were true, we would miss opportunities.
Strip the elegance, count the dollars: the cost of local adaptation is often built into the price, not a fatality.
In Dubai, it is scorching hot and humid, but everything is air-conditioned; the Swiss traveler, accustomed to comparison, sees a manageable cost, not a drawdown.
The humidity argument is not a stable truth; it depends on local investments in comfort, which make the climate bearable. The thermal impact is a variable, not a constant.