I like how it shows when the first and last person of each generation hits certain milestones.
However I'm not sure if the cutoff makes sense. If the first section is birth to 18, then the final could be retirement (or 60) to 'death of the last person from that generation'. That would be more meaningful visually, and it would also show how many people from each generation were still alive at each point.
Since "first person to die" doesn't make sense, it would need to be a straight line at whatever year is the last confirmed death
I hear you but death age is likely a messy statistic. Using life expectancy might help, but that too depends on a number of things. So I can see why they went this way … it lets you apply the ages to what you know.
Isn't it a bit arbitrary to just divide time into generations like this? It makes more sense for big events in history, like the world wars, but now, I don't know. According to this I am a millennial, but what does that mean really? That I saw the internet become what it is now? Not a very defining thing for a whole generation imho.
Generations are divided like that, at least some of them.
Boomers for example, refers to the population boom after WW2 and millennials refer to people who generally came into adulthood around the widespread adoption of the internet.
Generally though, generations are divided into cohorts and they do have arbitrary cutoff points. Generally the goal isn't to say "this group of people experienced x event" it's just meant to say that the general cohort had similar over arching experiences in society.
That's also why there are mixed definitions, and over lapping time periods, because not everyone identifies perfectly with their cohort.
Yes, incredibly arbitrary, and yet that doesn't stop people immediately grabbing on to them for whatever tribalism they want to justify. The "baby boom" was a notable thing where suddenly there were a lot of post-war births, the rest is at best some vague suggestions that these people sort of behave similarly because of similar geopolitical conditions.
For sure the whole thing is much more fuzzy than this, with “in between” generations, like Jones gen and xennials being quite real. Plus all of the other factors that make up a society.
One big piece missing here though are the relative sizes of the generations, which is part of my interest. Boomer and Millennial bring the biggest, which colors the implications.