SITUATION EXPLAINED: AI just created viruses that don't exist in nature. • Arc Institute and Stanford used their Evo models to design new versions of ΦX174, a bacteriophage with 11 genes • Fine-tuned on 14,466 Microviridae sequences, synthesized 302 designs, 16 produced viable viruses • Some killed E. coli faster than the natural phage, and several qualify as new species under international taxonomy rules • Eukaryotic viruses were deliberately excluded from training data, so the models can't…