 The most common view of well-being is ‘invariabilism’, according to which there is a single account of well-being for all individuals for whom life can go well or badly (Lin 2018). Some have argued, however, that we should develop a variabilist view, according to which, for example, there might be one theory of well-being for adults and another for children (see Skelton 2015). According to Benatar (2006), existence for any individual with well-being is always of overall negative value. On well-being and death, see Bradley (2006).