The Japanese entrepreneur has held preliminary discussions with investors about committing to a second fund as early as 2019, the people said, asking not to be identified as the matter is private. The people said the planned fund would likely draw a wider pool of investors than the first one, in which most of the contributions came from sovereign wealth funds in Saudi Arabia and the United Arab Emirates.

A representative for SoftBank declined to comment.

The fund is likely to be similar in size to the almost $100 billion that was raised for the first Vision Fund, the people said. About $45 billion of the current fund has been deployed on investments ranging from Uber Technologies to a stake in Nvidia (NVDA), the people said. No final decisions have been made and the billionaire businessman may also decide against the plan, they said.

“I’m not sure where he can find more good investment opportunities,” said Dan Baker, an analyst at Morningstar Investment Management Asia in Hong Kong. “That seems like a lot of additional capital.”

At an event in Tokyo on Tuesday, Son said that the second fund would be launched soon.

“Vision Fund 2 will definitely come, it’s just a matter of when,” Son said. “Sometime in the near future.”

Son didn’t give a specific time-line or scale, but he did talk at length about how he makes investments. He invoked the mindset of Yoda, the green Jedi master from the “Star Wars” films.

“Yoda says use the force,” he said. “Don’t think, just feel it.”

He continued: “Every time my team does due diligence, they do it for one, two, three months and do a deep dive. But my first insight in the first few minutes is sometimes more meaningful than detailed calculation.”

“You do it so many times, you don’t even need to think,” Son said. “You can just feel it.”

SoftBank shares slid 1.7% in Tokyo trading and are down about 5% this year.