i submit that 6 years is fundamentally different than 30 years. 30 isnt just 5 groups of 6.
i am pretty similar to the person I was when i was in 2005, but I bear no resemblance to the fellow from the 80’s. fundamental changes happen over 30 years. 6 can fly by but 30 is difficult to pass without notice.
30 is similar to a lifetime. 6 is just a temporary stretch.
things are basically the same over 6 years. but things are totally different after 30.