We can all pretend to be fantastic until the floor collapses beneath us. At that point, complacency / denial gives way to panic, but it's too late to effect any realistic reversal of fortune.
Doom Loops have been in the lexicon a long time. The basic idea is the decline of one of the inputs holding up the status quo weakens the other inputs. This weakness feeds back on itself, accelerating the decline until a critical support level breaks and the system collapses.