Final answer:
The claim about the ratio of 15 seniors to every new baby born by 2023 is not supported by U.S. Census Bureau data, which instead shows a growing aging population and an increasing dependency ratio influenced by the aging of the baby boom generation.
Step-by-step explanation:
The assertion that by the end of the year 2023, there will be 15 people aged 65 and over for every new baby born appears to be an exaggeration of the demographic trend, rather than a strict statistical fact. The U.S. Census Bureau data indicates that the aging population is indeed growing, as the dependency ratio, which is the number of people 65 and older to every 100 people of traditional working ages, is expected to climb from 22 in 2010 to 35 in 2030. While the proportion of those over 65 is increasing, the statement about 15 older people for every new baby born by the end of 2023 doesn't align with official projections or current statistics.
Furthermore, it is important to factor in that life expectancy is also increasing, and that the baby boom generation is contributing significantly to the rise in the senior population as they reach retirement age. The increasing life expectancy and the shifting demographics due to the baby boomers aging into the over-65 category are significant, but the specific ratio mentioned in the question is not supported by the provided data.