Life expediencies have been rising by up to three months a year since 1840, and there is no sign of that flattening. Lynda Gratton and Andrew Scott draw on a 2009 study to show that if the trend continues, more than half the babies born in wealthier countries since 2000 may reach their 100th birthdays. With a few simple, devastating strokes, Gratton and Scott show that under the current system it is almost certain you won’t be able to save enough to fund several decades of decent retirement. For example, if your life expectancy is 100, you want a pension that is 50 percent of your final salary, and you save 10 percent of your earnings each year, they calculate that you won’t be able to retire till your 80s. people with 100-year life expediencies must recognize they are in for the long haul, and make an early start arranging their lives accordingly. But how to go about this? Gratton and Scott advance the idea of a multistage life, with repeated changes of direction and attention. Material and intangible assets will need upkeep, renewal or replacement. Skills will need updating, augmenting or discarding， as will networks of friends and acquaintances. Earning will be interspersed with learning or self-reflection. As the authors warn, recreation will have to become re-creation.
Life expectancies have been rising with no signs of flattening, with rising concerns about the fact that people may not be able to save enough to sustain themselves financially in retirement, and one recommendation is a multi-stage life, suggesting people need to maintain their material and intangible assets in good conditions, improve their skills, intersperse their earning and try to recreate rather than engaging in recreational activities. (67 words)