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How New Is the Air You're Breathing?
It started with a joke about selling holy air from Jerusalem in little vials — and turned into a real question about whether air can be sealed, preserved, and dated. This episode digs into why an air pillow from Shenzhen isn't actually Chinese air, why "hermetic" is a spectrum rather than a switch, and what a Roman glassblower could theoretically have preserved for two thousand years. Then it goes deeper: where does planetary air come from, and is the atmosphere a stockpile or a throughput? The answer involves billion-year-old outgassing, oxygen as a biological product, and residence times…
The skinny
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