Lin Wan-i, Executive Yuan minister without portfolio and professor in the Department of Social Work at National Taiwan University, argues that population aging will represent a greater challenge for humanity in the 21st century than global warming, depleting oil reserves, and international terrorism, because from our current perspective it appears that population aging will cause irreversible problems.
行政院政務委員、台大社工系教授林萬億指出，對 21 世紀的人類社會來說，人口老化比全球暖化、石油枯竭、國際恐怖主義等議題更難處理，因為人口老化所帶來的問題十分複雜，且目前看來「毫無轉圜的空間」。