(Bloomberg) -- Around his 71st birthday, Larry Fink began to blue-sky about the future.Most Read from BloombergNJ College to Merge With State School After Financial StressNYC Congestion Pricing Toll Gains Support Among City ResidentsWhere New York City's Zoning Reform Will Add HousingInside the ‘Not Architecture’ of High Line Designers Diller Scofidio + RenfroElectric Construction Equipment Promises a Quiet RevolutionWhat would it take, the billionaire mused with associates, to really grow the f