One Article Review
| Source |  taosecurity |
|---|---|
| Identifiant | 459739 |
| Date de publication | 2018-01-16 12:31:57 (vue: 2018-01-16 12:31:57) |
| Titre | Addressing Innumeracy in Reporting |
| Texte |  Anyone involved in cybersecurity reporting needs a strong sense of numeracy, or mathematical literacy. I see two sorts of examples of innumeracy repeatedly in the media.The first involves the time value of money. Recently CNN claimed Amazon CEO Jeff Bezos was the "richest person in history" and Recode said Bezos was "now worth more than Bill Gates ever was." Thankfully both Richard Steinnon and Noah Kirsch recognized the foolishness of these reports, correctly noting that Bezos would only rank number 17 on a list where wealth was adjusted for inflation.This failure to recognize the time value of money is pervasive. Just today I heard the host of a podcast claim that the 1998 Jackie Chan movie Rush Hour was "the top grossing martial arts film of all time." According to Box Office Mojo, Rush Hour earned $244,386,864 worldwide. Adjusting for inflation, in 2017 dollars that's $367,509,865.67 -- impressive!For comparison, I researched the box office returns for Bruce Lee's Enter the Dragon. Box Office Mojo lacked data, but I found a 2017 article stating his 1973 movie earned "$25 million in the U.S. and $90 million worldwide, excluding Hong Kong." If I adjust the worldwide figure of $90 million for inflation, in 2017 dollars that's $496,864,864.86 -- making Enter the Dragon easily more successful than Rush Hour.If you're wondering about Crouching Tiger, Hidden Dragon, that 2000 movie earned $213,525,736 worldwide. That movie earned less than Rush Hour, and arrived two years later, so it's not worth doing the inflation math.The take-away is that any time you are comparing dollars from different time periods, you must adjust for inflation to have your comparisons have any meaning whatsoever. Chart by @CanadianFlagsThe second sort of innumeracy I'd like to highlight today also involves money, but in a slightly different way. This involves changes in values over time.For example, a company may grow revenue from 2015 to 2016, with 2015 revenue being $100,000 and 2016 being $200,000. That's a 100% gain.If the company grows another $100,000 from 2016 to 2017, from $200,000 to $300,000, the growth rate has declined to 50%. To have maintained a 100% growth rate, the comp |
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| Envoyé | Oui |
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