黑与白是社会的两极，也可以说是善恶的两极，而无处不在又无可逃离的灰，才是社会或者说生命的真相。这也直指电影最核心主题——命运的荒诞，生命的虚无，众生皆苦。

A recent survey shows that in many countries across the world people are generally living longer. But an increased life expectancy has many implications for the aging individuals and for the society as a whole. What are the possible effects of a longer life expectancy on individuals and the society?