In which dry climate do you think the fewest people live and why?

The Atacama Desert in Chile is one of the driest places on Earth and likely has one of the lowest populations in a dry climate. Its extreme aridity, with some areas receiving less than 1 millimeter of rain per year, makes it inhospitable for large human settlements. The harsh conditions limit agriculture and access to water, leading to sparse human habitation primarily in small towns or mining communities.