Life in a Day (2011 film) part of the "elite" and to show the intricacy and strangeness of the seemingly mundane." Macdonald began his "Around the world in 80,000 clips" article in "The Guardian" by posing the questions, ""What do you love? What do you fear? What's in your pocket?"" and explaining that "one day last summer, I asked ordinary people around the world to answer those three questions and spend a day filming their lives." The 80,000 individual clips received amounted to 4,500 hours of electronic footage. Macdonald explained that about 75% of the film's content came from people contacted through YouTube, traditional advertising, TV
Life expectancy used in the context of manufactured objects, but the related term shelf life is used for consumer products, and the terms "mean time to breakdown" (MTTB) and "mean time between failures" (MTBF) are used in engineering. The oldest confirmed recorded age for any human is 122 years, reached by Jeanne Calment who lived between 1875 and 1997. This is referred to as the "maximum life span", which is the upper boundary of life, the maximum number of years any human is known to have lived. Theoretical study shows that the maximum life expectancy at birth is limited by the human