In a move that speaks to the gravitational pull of artificial intelligence on global capital, SoftBank Group has launched a bond offering exceeding $10 billion — debt raised not for diversification, but with a single destination: a deeper stake in OpenAI. The Japanese conglomerate, long a bellwether for technology's most ambitious bets, is signaling that the age of AI is not a moment to observe from a distance. That institutional markets appear willing to absorb this debt suggests the conviction is not SoftBank's alone.