Serendipitously, a hike in the mountains became the key to resolving the dilemma. On a trip back from America, where he had been researching and promoting renewable energy sources for the US Department of Energy, Cheng's university classmate Simon Tsuo invited Cheng to hike a mountain near Taipei.
沒想到，一場爬山之旅，成了打開僵局的關鍵：原本任職於美國能源部、負責研發與推廣再生能源的大學同學左元淮返台期間，約了鄭福田一同去爬七星山。