An AI model named EVO2 designed novel bacteriophage genomes from scratch. When created in a lab, these viruses were not only viable but also functioned better than the best-known natural phages at killing E. coli, marking a new era in biological engineering.

The rationale for "virus hunting" is to create advance vaccines. However, you cannot safely test a vaccine for a novel, deadly pathogen on healthy humans. This makes the knowledge unactionable for prevention, while creating immense risk by bringing dangerous pathogens into leaky labs and publicizing their existence.

The ability to distinguish an engineered virus from a natural one is a critical deterrent. Proving a pathogen was deliberately created narrows the list of suspects to a handful of state programs, enabling political and intelligence-led responses that would otherwise be impossible.

Research that made bird flu transmissible between mammals is not illegal. Since the COVID-19 pandemic, it has been broadly defunded by governments, but private labs face little oversight, creating a significant biosecurity blind spot.

The belief that nature represents the ceiling of pathogen danger is false. Just as humans engineer materials stronger than any found in nature, AI can be used to design viruses that are far more transmissible or lethal than their natural counterparts.

Scientists have designed viruses for years, but AI's breakthrough is making the process thousands of times cheaper and faster. This accelerates positive biotech applications like gene therapy but also heightens biosecurity risks by lowering the barrier to entry for creating problematic agents.

The next major biological threat may not be a single event like COVID-19, but rather 'waves and waves of new pandemics.' This is due to the increasing accessibility and decreasing cost of the knowledge and equipment needed to create novel pathogens, potentially allowing individuals to tinker with viruses in their basements, leading to frequent lab leaks.

Scientists deliberately engineer pathogens to be more dangerous to develop defenses against them. Critics argue this work, given hundreds of past lab failures, creates catastrophic global risk and is functionally identical to creating illegal biological weapons, blurring the line between prevention and proliferation.

"Gain-of-function" research, intended to develop countermeasures for dangerous pathogens, uses the same methods as offensive bioweapon creation. This paradox means that efforts to defend against biological threats inherently increase the risk of creating them, whether deliberately or by accident.