Stagnation is an event that can occurs in the economy, when the entire production is either turning down, flat or growing very slow. Regular unemployment is also an aspect of a stagnant economy.
An extended period of small or none increase in the economy is considered stagnation.
Gross Domestic Product (GDP) shows when the economy is trapped or stagnated.
The text begins by recounting the belief that the Titanic was virtually indestructable and later reveals the failings that led to the Titanic disaster.