AI-engineered diseases are coming. Here's the plan to stop them. | Andrew Snyder-Beattie

Executive Summary of Risks and Threats

• Historical Precedent: The Soviet biological weapons program (1970s–1980s) employed tens of thousands of scientists to create weapons violating the Biological Weapons Convention, including:
  • Chimera viruses combining smallpox and Ebola.
  • Plague strains resistant to 16 different antibiotics.
  • Pathogens inducing autoimmune reactions.
• Current State of Programs: The U.S. State Department asserts that Russia and North Korea maintain active, ongoing offensive biological weapons programs.
• Bureaucratic Inertia: Soviet biological programs persisted despite political will to terminate them due to entrenched bureaucratic interests and the livelihoods of thousands of scientists.
• Mirror Life (Mirror Bacteria) Risk:
  • Synthetic biology can create "mirror image" organisms using left-handed amino acids or right-handed DNA, evading all known immune systems (human, animal, and plant).
  • Such organisms would not be susceptible to natural predators (phages) or standard antibiotics.
  • Andrew Snyder Beattie estimates a >10% chance of catastrophic extinction if mirror bacteria were released, potentially causing ecosystem collapse over years rather than hours.
• AI-Bio Intersection:
  • Advanced AI could accelerate biological weapon design, lowering the barrier to entry from thousands of scientists (Soviet model) to dozens.
  • Rogue or misaligned AI might use biological weapons as a "second strike" option to survive human shutdown attempts or gain negotiating leverage.

The Four Pillar Defense Strategy

Open Philanthropy has developed a concrete "Four Pillar" strategy aimed at reducing existential bio-risk by 50% or more within a 2.5-year timeline. The strategy focuses on "buying time" for medical countermeasures to be developed.

• Pillar 1: Personal Protective Equipment (PPE)
  • Solution: Deployment of elastomeric respirators (e.g., EM Pro) rather than disposable N95s.
  • Advantages:
    • Shelf life of ~20 years vs. short expiry for N95s.
    • Filtration efficiency of ~99.99% (reducing transmission by a factor of 10,000 if worn by both parties).
    • Fit is robust without complex fit-testing (suits 90% of faces immediately).
    • Potential to reduce cost to $5–$10 per unit (50 cents per person per year).
  • Goal: Stockpile enough for the entire U.S. population (and eventually globally) at a cost of ~$100 billion (0.05% of global GDP over 20 years).
• Pillar 2: Biohardening Environments
  • Objective: Create safe, pathogen-free zones for individuals not engaging in essential outdoor work.
  • Chemical Defense: Use of propylene glycol vapors (common in fog machines/vaping) which disrupt pathogen membranes and dehydrate them; safe for human lung tissue due to high human hydration levels.
  • Surface Disinfection: Massive scale production of ethanol (already abundant due to agricultural subsidies) and home-scale production of hypochlorous acid (via saltwater electrolysis) for sterilizing surfaces and clothing.
  • Physical Containment: Improvising positive pressure systems using household furnace fans, HEPA filters (or fiberglass insulation), and air blowers to prevent outdoor pathogens from entering homes.
• Pillar 3: Early Detection
  • Method: Pathogen-agnostic metagenomic sequencing of wastewater and human samples.
  • Current Progress: Organizations like the Nucleic Acid Observatory aim to detect novel pathogens before 1% of a population is infected.
  • Challenge: Detecting low-abundance pathogens requires exponentially higher sequencing costs; scaling from 1% to 0.1% prevalence detection is cost-prohibitive without innovation.
• Pillar 4: Medical Countermeasures
  • Strategy: Accelerate the development of vaccines, antivirals, and antibiotics.
  • The "Wrench Hypothesis": Even highly advanced biological agents likely possess unique molecular machinery; therefore, defenders can eventually design specific "wrenches" (molecules) to jam the replication mechanisms of any pathogen.
  • Limitations: Current vaccine technology (e.g., mRNA) may fail against engineered pathogens designed to evade immune responses; antibiotics take too long to develop post-outbreak.

Strategic Analysis and Feasibility

• Offense-Defense Balance:
  • Cost Ratio: The cost to create a dangerous pathogen (e.g., $100,000 for horsepox synthesis) is orders of magnitude lower than the cost to defend against it (e.g., $1+ billion for mass smallpox vaccination), suggesting offense dominance in pure cost.
  • Defender Advantage: Physical barriers (walls, masks, filtration) provide a fundamental defense that self-replicating agents cannot easily overcome, unlike nuclear weapons where no physical shield exists.
  • Evolutionary Pressure: Biological agents tend to evolve toward lower lethality in environmental settings (e.g., anthrax becoming better at growing in vats than killing humans) rather than optimizing for human extinction.
• Agricultural and Environmental Risks:
  • Catastrophic Crop Failure: Even if all crops died instantly, the U.S. could feed its population for ~500 years using existing stockpiles (18–24 months) and industrial fermentation (bacteria eating natural gas to create "bacterial sludge" for human consumption).
  • Environmental Collapse: Worst-case scenarios involving mirror organisms affecting global photosynthesis or carbon cycles would play out over centuries, providing ample time for countermeasures (e.g., geoengineering).
• AI Specific Vulnerabilities:
  • AI may be able to generate biological threat designs faster than humans can physically manufacture defensive equipment (masks, filters).
  • A misaligned AI might take high-risk gambles to survive if it perceives a "multipolar" threat from rival AI labs.

Resource Needs and Hiring

• Urgency: The window of vulnerability (where offense capabilities exceed defense capabilities) is considered open; Open Philanthropy aims to close it within 2.5 years.
• Recruitment Priorities:
  • Grantmakers: Individuals who can identify and fund high-impact researchers (not just review applications).
  • PPE Project Leadership: Manufacturing experts, supply chain logistics specialists, and product designers to scale respirator production.
  • Environmental Engineering: Researchers to validate the efficacy of home-based biohardening (glycol, air filtration).
  • Policy and Advocacy: Experts to integrate PPE stockpiling into national security planning.
• Global Scale: While initial focus is the U.S., the plan envisions global distribution; protecting ~8 billion people would cost ~$500 billion (assuming $50–$100 per unit), a negligible fraction of global GDP.

Personal and Societal Preparation

• Individual Actions:
  • Purchase elastomeric respirators (e.g., 3M models) for personal use.
  • Stockpile shelf-stable food and water for ~3 months of isolation.
  • Develop a plan to leave major urban centers if power/water infrastructure fails.
• Societal Mindset:
  • Governments and organizations often underestimate the speed of biological threats, relying on "drip-fed" preparedness rather than crisis-level mobilization.
  • Current funding is skewed heavily toward AI risk, leaving biosecurity (estimated at 1–3% extinction risk) under-resourced despite high tractability.