What are the dumbest takes about decades or years you've seen?

"1980 and 1999 are part of the same era."

"The 60s and 90s weren't that different. The 90s just had more advanced versions of technology from the 60s."

"Everything has been the same since 2000."

"The 2010s began in February 2004 when Facebook launched."

"The 2020s began in June 2015 because he announced his candidacy for the 2016 election."

"2019 is closer to 2009 than 2020 because of COVID."