Once I believed that the paper Progress Measures for Grokking via Mechanistic Interpretability had found the network grokking onto the Schönhage-Strassen algorithm on the task of modular multiplication, not on modular addition around the circle
pros: - might spur the development of new technology
cons: - millions would die - nature and ancient history would be destroyed - a land invasion of either country would be insanely difficult - there's no point - government would give itself even more emergency powers