The glow of outward success may very well be a lagging indicator of eventual failure, if not the cause. Companies, nation states of years past can also follow this rough pattern.
> This phenomenon brings to mind a comparison used by Thomas Mann in his great novel Buddenbrooks. Observing that human institutions often show the greatest outward brilliance at a moment when inner decay is in reality farthest advanced, he compared one of those stars whose light shines most brightly on this world when in reality it has long since ceased to exist.
http://www.historyguide.org/europe/kennan.html
> This phenomenon brings to mind a comparison used by Thomas Mann in his great novel Buddenbrooks. Observing that human institutions often show the greatest outward brilliance at a moment when inner decay is in reality farthest advanced, he compared one of those stars whose light shines most brightly on this world when in reality it has long since ceased to exist.