The Lindy effect (also known as Lindy's Law[1]) is a theorized phenomenon by which the future life expectancy of some non-perishable things, like a technology or an idea, is proportional to their current age. Thus, the Lindy effect proposes the longer a period something has survived to exist or be used in the present, it is also likely to have a longer remaining life expectancy. Longevity implies a resistance to change, obsolescence or competition and greater odds of continued existence into the future.[2] Where the Lindy effect applies, mortality rate decreases with time.