His trend line is a linear one, so I don't believe it is accounting for anything other than previous death counts. Population growth and the expansion of celebr

His trend line is a linear one, so I don't believe it is accounting for anything other than previous death counts. Population growth and the expansion of celebrity through mass media would expect a more exponential curve. Life expectancy increasing may have also lead to a delay of seeing a more exponential uptick before now, but death always catches up eventually. Anyways I don't have an answer just postulating that unless you would need to have a distribution of current (and past) celebrities and their ages as well to account for that factor. Something you could probably do with that Wikipedia analysis actually.