I think the claim "Even heat-adapted people cannot carry out normal outdoor activities past a wet-bulb temperature of 32 °C (90 °F)" is dubious. When I lived i

I think the claim "Even heat-adapted people cannot carry out normal outdoor activities past a wet-bulb temperature of 32 °C (90 °F)" is dubious. When I lived in Taipei, it would common to have 100F @ 100% RH in July/August and life/activity didn't suddenly stop because of it including people working outdoors. Now they may have modulated or changed how they worked outdoors but it's not absolutely so dire as this line claims. The reality of seeing that is self-evident proof is wrong. I'm wondering where this actually cites from...