I read somewhere that the entire human population uses about 0.5% of all water, and water covers around 71% of Earth's surface. And apparently we have developed

I read somewhere that the entire human population uses about 0.5% of all water, and water covers around 71% of Earth's surface. And apparently we have developed a lot of cheap and effective water filters [1] [2] [3]. Access to water is a logistics problem, but still, it would be pretty dystopian if reasonable amounts of water aren't cheap. [1] https://www.bbc.com/news/world-africa-32973591 https://www.bbc.com/news/world-africa-32973591 [2] https://cordis.europa.eu/article/id/415837-new-technology-provides-clean-water-in-africa https://cordis.europa.eu/article/id/415837-new-technology-pr... [3] https://www.h2o4a.org/life-straws-1 https://www.h2o4a.org/life-straws-1