“Surviving Mirror Life: A Manual for Resilience in Buildings: Introduction to the threat, concepts and scenario parameters” by JesseSmith

Epistemic certainty: Obviously loads of uncertainty on mirror life risks and the degree to which we'd have to pressurize buildings or filter outdoor air. Moderately high certainty for the best hasty pathways for doing this in North American and a narrow subset of European buildings. Lower certainty as we move towards international buildings. Also loads of experiments and field tests are needed, possibly somewhat urgently. Let's discuss the threat and the parameters around it. I’m neither a scientist nor a risk analyst so we won’t spend much time here. In the future we might have a world in which mirror life is released into the world. Unmitigated, this threat could potentially extinguish all living beings. This might be via accidental leak or an omnicidal person or group. I’m not going to speak to the technical possibilities or likelihoods, but for our purposes, the outdoor air would be poisonous. To be safely inhaled we’d need highly effective filtration (99.999% fine particulate removal). To be inhabitable buildings would have to be almost entirely resistant to air infiltration. We would achieve this by highly pressurizing buildings, which means we would blow air into them. The two main sources of building leakage are [...] --- First published: May 5th, 2026 Source: https://forum.effectivealtruism.org/posts/b3qTtr9Rt3Lk9vdEo/surviving-mirror-life-a-manual-for-resilience-in-buildings --- Narrated by TYPE III AUDIO.