David Solomon doesn’t mince words. The Goldman Sachs chief executive sees markets gripped by optimism. “We are definitely in a moment where there’s more greed than there is fear,” he told CNBC’s Leslie Picker on Tuesday. ( CNBC ) His timing carries weight. OpenAI, Anthropic and SpaceX stand on the verge of public debuts that could reshape capital markets. Valuations in the hundreds of billions or even trillions. Fundraising targets measured in tens of billions. One of the busiest stretches of equity issuance in years looms. And Goldman sits at the center, positioned to advise on several of these deals. Solomon’s message lands as a blend of reassurance and caution. Plenty of liquidity exists, he argues. Companies that burn cash should raise while they can. “When capital’s available, if you’re capital consumptive and it’s available, take the capital,” he said. Yet he acknowledges the flip side. Greed turns to fear fast. Exuberance lasts longer than skeptics expect.…