Visions swirled, unveiling man’s forgotten past when we drank water directly from crystal-clear streams without fear of death.

Visions swirled, unveiling man’s forgotten past when we drank water directly from crystal-clear streams without fear of death. Surely, they had to survive at some point without purification techniques? A shadowy curiosity lingered—when exactly had the purity of these waters been irrevocably lost? He thought for a second on it. Streams of luminous data cascaded before him, forming another shimmering holographic revelation that vividly depicted the unfolding catastrophe: after WWII, American farmers began using a pesticide called dichlorodiphenyltrichloroethane (DDT) to kill off insects ruining crops. Highly toxic, DDT seeped into streams with each rainfall, eventually merging into rivers and silently poisoning oceans.