Woofun AI reports that SoftBank Vision Fund II has participated in Helion’s Series F and Series G funding rounds, with the latest $465 million injection setting the company’s valuation at $15.5 billion. Masayoshi Son projects that global data centers will demand 3 terawatts of power by 2040, positioning nuclear fusion as a viable alternative to natural gas within 15 years. While commercial fusion generation remains unproven, Son dismissed concerns regarding an AI bubble as "profoundly stupid," asserting that data center investments will yield returns.