He makes his case based on carbon-14 dating done at archaeological sites around the islands. He points out that, true as it may be that there are signs of human settlement in Penghu dating back to the late Tang (ended 907) and through the Song-Yuan period, the different layers at the sites show that these were nothing more than temporary hamlets for fishermen.
他以澎湖所作的考古結果指出，從碳十四測定發現，澎湖雖有晚唐到元末明初的人類遺蹟，但從遺址的堆積層來看，最早出現的聚落，為臨時性的漁寮，直到南宋才有定居的形態出現。