If the magazine's circulation continues to rise as it has over the last ten years, in another ten years it will be the largest-selling martial arts magazine in the world. ██████████████ ██ ███ ███ ██████ █████ ████ ███ ██████████ █████████ ████ ███ █████ ███ ████████ ██████ ██ ████ ███ ███████ ███ ███ █████████ ███ ███████ █████ ████████ ███ ██████████ ███████████ ████ ███ ████ ██ ███████ ████ ███ ████ ███ █████ ██ ██ ███ ████ ███ ████ ████ ██ ███ ████████ ████ ███ ██ ███ ███████████████ ███████ ████ ████████ ███ █████ ████ ████
The author concludes that the magazine will not be the top martial arts magazine in a decade because the publisher has refused to allow the editor to make the changes she’s proposed. These changes are necessary for the magazine's circulation to continue to rise as quickly as it has, and it would become the top magazine were the circulation to continue rising at that rate.
This argument mistakes a sufficient condition for a necessary condition. If the magazine's circulation were to continue rising as it has for the last ten years, that is sufficient for the magazine to become the top-selling magazine. However, we’re given no reason to believe that this is the only way in which the magazine could become the top-selling magazine. Given that the argument fails to establish this condition as necessary, the author cannot conclude that the magazine will not become the top-selling magazine just because it can’t maintain the same rise in circulation.
The argument's reasoning is flawed ███████ ███ ████████
identifies some changes ████████ ███ ███ ██████████ ███████████ ██ ████████ ███ █████ ████████ ███ █████████ ████ ████ ████ ██ █████ ███████ ███ ██████
equates a reduction ██ ███ ████ ██ █████ ███ ██████████ ███████████ ██ ██████████ ████ █ ███████ ██ ███ ██████████ ███████████
draws a conclusion ████ ██████ ████████ █ █████ ████ ██ █████████ ██ ███████ ██ ████ ██████████
takes a single ████ ████ ██ ████████████ ████ █ ███████ █████ ██ ██████ ██ ████ ████ █████ ██ ██ █████
treats an occurrence ████ ████ ██████ █ ███████ ███████ ██ █████████ ████ ██ ████████ ███ ████ ███████