Uploaded February 2026 | Updated September 2026, 3 weeks ago

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This thought experiment explores the crucial role microbes play in sustaining life on our planet. From digestion and health to oxygen production, nutrient recycling, and global chemical cycles, microorganisms are essential for ecosystems, food chains, and the survival of plants, animals, and humans. Discover how their absence would affect the environment, the atmosphere, and ultimately life itself, and why such a scenario is unlikely to ever occur.

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