>Keynes wrote that to warn about the risk of inflation in Germany and its potential consequences -- years before high rates of inflation led to the failure of the German mark, the collapse of the Weimar republic, the rise of dangerous ideologues (the Nazis), and ultimately, World War II.
>If Turkey doesn't get inflation under control, it will implode.
As others have told you, Turkey and other countries have seen very high inflation rates for years/decades without collapsing.
Your history of Germany isn't correct, either. The hyperinflation that afflicted Germany in the early 1920s did hurt the Weimar Republic and caused a lot of chaos, but it didn't collapse. Yes, the Nazis were born during the chaotic years, but it remained insignificant as the Weimar government reined in inflation. By the late 1920s Germany was growing again and showed every sign of again becoming Europe's industrial leader. The Nazis took power in 1933, during the worldwide economic depression.