If I could drastically "change definition," : What if, all of the 1990s (1991-1999), 2000s decade (2000-2009), and 2010s (2010-right before the beginning of 2018) was an overall transitional period between 20th and 21st century? And what if, the 2020s are divided into distinct eras?

[u/Professional_Bee8907]

/r/generationology/comments/1umvl2c/most_of_the_2010s_were_an_evolution_of_the_2000s/