Why do generations differ so much in duration?

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I have always wondered why some generations are widely recognised to last ~15 years, others 18, some others 25. What even constitutes a generation?

In: Biology

7 Answers

Anonymous 0 Comments

So there’s a major conflict on how generations are defined and how people use them. Originally you would have a generation defining event. These would be things like catastrophes, wars, inventions, changes in governments. Some time after WWII these events started happening pretty rapidly. You had Korea, the space race, the cold war, Vietnam, TV becoming mainstream, Civil Rights, Kennedy’s Assassination all in a 20 year span. Each one of these would historically be considered a generation defining event and they all happened in less than a single generation period. This continued to accelerate through to today where generational events are almost a yearly occurrence. In 2020 we saw Covid, 2021 saw a rover land on Mars, 2022 saw the birth of generative AI, 2023 Russia invades the Ukraine, 2024 hasn’t been quiet but hasn’t had what I would consider a unique event yet, but it’s an election year so something is bound to boil over between partisan politics.

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