Final answer:
Roszak asserts that the baby boomer generation will change the meaning of old age and constitute a different kind of older population. Baby boomers have redefined what it means to be old and are driving innovation in the medical industry to maintain a high activity level in later life.
Step-by-step explanation:
Roszak asserts that the baby boomer generation will change the meaning of old age and constitute a different kind of older population. This is because the baby boomers have redefined what it means to be young, middle-aged, and now old. They do not want to grow old the way their grandparents did and are driving innovation in the medical industry to keep living vigorous lives.