sentences: "The movement of the footnote in the reprint has led to an assortment of advisers and investors recommending this formula (or revised versions of it) to the public at large — a practice that continues to this day.Benjamin Clark, the founder of the blog and investment service ModernGraham, acknowledges the footnote and argues that "I consider the footnote to be more of a reminder from Graham that the calculation of an intrinsic value is not an exact science and cannot be done with 100% certainty."