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The concept of life expectancy may also be used in the context of manufactured objects, [11] though the related term [dubious – discuss] shelf life is commonly used for consumer products, and the terms "mean time to breakdown" and "mean time between failures" are used in engineering.
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, the longer its remaining ...
Longevity may refer to especially long-lived members of a population, whereas life expectancy is defined statistically as the average number of years remaining at a given age. For example, a population's life expectancy at birth is the same as the average age at death for all people born in the same year (in the case of cohorts).
Not only has life expectancy not surpassed 85 in nearly any county, the U.S. famously saw a decline in life expectancy, and in 2023, it was the lowest it’s been in two decades (though Harvard ...
"COVID-19 has erased two decades of life expectancy growth in the U.S., whereas the average life expectancy for comparable countries has decreased only marginally, to 2018 levels," the Health ...
New CDC data shows the average U.S. life expectancy has gone up since 2021, but it is still more than a year below pre-pandemic levels.
This is especially true for Healthy life expectancy, the definition of which criteria may change over time, even within a country. For example, Canada is a country with a fairly high overall life expectancy at 81.63 years; however, this number decreases to 75.5 years for Indigenous people in the country. [4]
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