Here is list of all generations from 1890 to 2025. There are some overlaps because of differences in definitions.
Above is a picture of six generations of one family.
It is not unreasonable for 8 generations in one family to be alive at the same time. If the oldest son or daughter was born by the time the parent was 16 and the oldest lived to 111.
People have given birth at insanely young ages. Apparently, someone got pregnant at 5 and gave birth at 6.
Th average age of first time moms in the US is now 26. In Angola, the average age of first time moms is 18.
Generation Names Start births End Age Range The Lost Generation, Generation of 1914 1883 1900 118 135 The Interbellum Generation 1901 1913 105 118 GI Generation 1901 1924 94 118 The Greatest Generation 1910 1924 94 108 The Silent Generation 1925 1942 76 93 Baby Boomer Generation 1946 1964 54 72 Generation X (Baby Bust) 1965 1979 39 53 Xennials 1975 1985 33 43 Millennials, Generation Y, Gen Next 1980 1994 24 38 iGen / Gen Z 1995 2012 6 23 Gen Alpha 2013 2025 -7 5
Everyone from the lost generation is now dead. At least no one has a verified birth before 1900.
There is the question of when will the last person born before 2000 die.
Reaching the age of 100 is still very rare. Even 95 is still rare.
Many boomers have a shot at significant life extension. I think it can start happening in a major way by 2025 to 2030. However, getting the treatments deployed and scaled to tens of millions would be tough by 2040.
Brian Wang is a Futurist Thought Leader and a popular Science blogger with 1 million readers per month. His blog Nextbigfuture.com is ranked #1 Science News Blog. It covers many disruptive technology and trends including Space, Robotics, Artificial Intelligence, Medicine, Anti-aging Biotechnology, and Nanotechnology.
Known for identifying cutting edge technologies, he is currently a Co-Founder of a startup and fundraiser for high potential early-stage companies. He is the Head of Research for Allocations for deep technology investments and an Angel Investor at Space Angels.
A frequent speaker at corporations, he has been a TEDx speaker, a Singularity University speaker and guest at numerous interviews for radio and podcasts. He is open to public speaking and advising engagements.