Fluoride, pasteurised milk, bottled water, vapes - if you wanted to control society using liquids, where would you even start? Michelle and Jamie take the long-running fear that “they’re putting something in the water” and run with it, unpacking how everyday substances became vessels for anxieties about government power, health, trust, and who gets blamed when things go wrong. With the groundwork laid, Jamie and Michelle shift from analysis to invention, designing a product they'd want to introduce to the market given half a chance and a budget.

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