In the wake of catastrophic flooding along the Nepal-China border, heroic rescue teams are pulling survivors from the muck, their bodies caked in a thick, grayish mud. Officials say the death toll continues to climb, but the living are being rushed to safety—and to a new kind of data collection. At first glance, the mud is just a tragic byproduct of the disaster. But a team of geochemists from the Institute of Unintended Consequences has discovered that every cubic inch of this mud contains microscopic traces of the survivors' personal history: breakfast crumbs, skincare residues, even the chemical signature of their deodorant. “We can tell what they ate, what they wore, and whether they skipped their morning run,” says Dr. Pema Lhamo, lead researcher. The implications are, as she puts it, “staggeringly lucrative.” Insurance companies have already begun analyzing the mud samples flown in by helicopter. Early results show that survivors with high traces of caffeine (from coffee or tea) are being flagged as “high-risk” for cardiovascular issues. Those with mud containing traces of organic vegetables are being offered “premium discounts” if they agree to a yearly mud audit. “We’re calling it ‘Mud-Based Underwriting,’” explains a spokesperson for AetnaCatLife. “It’s the most transparent way to price risk—literally transparent, because we can see right through you.” Data brokers are not far behind. A new startup, MudExchange, is already trading “mud futures” on the dark web, with prices based on the perceived health and wealth of the sample donor. Survivors who have been rescued are now receiving emails offering to buy their mud for “competitive rates.” Some have even reported being followed by drones carrying tiny trowels. Meanwhile, the Nepali government has declared a state of “mud emergency,” banning unauthorized collection of mud without a permit. But the black market is thriving. The mud is being sold as “authentic disaster dirt” to collectors in Europe, who use it to make artisanal soaps and “wellness patches.” The most absurd consequence? A new insurance clause buried in the fine print of many policies: “If the insured is found to have been covered in mud of a certain composition during a natural disaster, their coverage may be adjusted based on the mud’s nutritional value.” So, as the last survivors are pulled from the sludge, one question remains: In a world where even the mud doesn’t let you escape, is your data ever really clean?