This issue of the Canadian quarterly "Transition", in French and English language versions, examines issues related to the demographic shift Canada will experience as the baby boom generation enters "old age." Major articles in this issue are: (1) "Of Mutual Benefit," which outlines some of the challenges Canada faces in an aging and changing society, and the kind of information that is needed to take on these challenges; (2) "Boomers Today, Seniors Tomorrow," which looks at how tomorrow's seniors will differ from today's and the implications of these differences; 3) "At the Heart of Social Solidarity," which shows how intergenerational transfers of money, in-kind services, care support, or assistance constitute the very heart of society; (4) "Beyond Apocalyptic Demography," which takes on the population alarmists; (5) "The Grey Interlude," arguing that with planning, Canada can cope and prosper through its aging phase; and (6) "Why I Dislike the Term 'Eldercare'", which criticizes the connotations of the term. Other brief articles and columns discuss the future of the Canada Pension Plan and the associated Quebec Pension Plan, and the final report on the Canadian Aging Research Network. (AA)