BlackRock, the world’s biggest asset manager, will only bring some two-thirds of employees back to the office and that’s a good thing, according to its billionaire chief executive Larry Fink.

“I don’t believe BlackRock will be ever 100% back in office,” Fink told the Morningstar Investment Conference on Thursday, according to CNBC. “I actually believe maybe 60% or 70%, and maybe that’s a rotation of people. But I don’t believe we’ll ever have a full, you know, cadre of people in office.