50年都不敢建的水电站，为啥现在开工？

Core Insights - The article discusses the challenges and complexities involved in constructing the world's largest hydropower project, the Yarlung Tsangpo River downstream hydropower project, highlighting the long wait of half a century before actual construction began [1] Group 1 - The project is described as a monumental engineering feat that has faced numerous difficulties over the decades [1] - The article raises questions about the geological conditions and the efforts of generations of engineers who have worked on this project [1] - It emphasizes the significance of the project in harnessing vast energy resources [1]