21 Life expectancy: E. Arias,“United StatesLife
Tables,”National Vital Statistics Reports62 (2014): 51.
21 Familysizesfell:L.E.JonesandM.Tertilt,“An
EconomicHistoryofFertilityin theU.S., 1826–1960,”
NBER Working Paper Series, Working Paper 12796,
2006,http://www.nber.org/papers/w12796.
21 The average age at which: Fischer, appendix,
table 6.
21 “intimacyatadistance”:L. Rosenmayrand E.
Kockeis, “Propositions for a Socio logical Theory of
Aging and the Family,” International Social Science
Journal15 (1963): 410–24.
21 Whereas in early-twentieth-century America:
Haber and Gratton, p. 44.
21 Thepatternisaworldwideone:E.Klinenberg,
Going Solo: The Extraordinary Rise and Surprising
Appeal of Living Alone(Penguin, 2012).
21 Just 10 percent:European Commission,i2010:
Independent Living for the Ageing Society,
http://ec.europa.eu/information_society/activities/ict_psp/
documents/independent_living.pdf.
21 DelWebb:J.A.Trolander,FromSunCitiesto
the Villages(University Press of Florida, 2011).
2: THINGS FALL APART
25 trajectory of our lives: J. R. Lunney et al.,
“Patterns of Functional Decline at the End of Life,”
JournaloftheAmericanMedicalAssociation 289 (2003):