Expanding upon the definition of decadeology:
* Debating whether or not a specific year belongs to the early, mid, or late part of a decade, like each decade
has to be rigidly divided into three separate eras dictated by completely arbitrary cutoff points. It's fine to feel that pop culture history enters different eras, and expanding upon them from personal experience can actually bring about fairly productive discussion, but when these discussions become purely dogmatic and technical, it's a complete waste of time and likely to just loop infinitely over the same brainless points.
* Debating when a decade truly started or truly ended. The early years of a decade
always contain at least some elements present in the previous decade, that's just the natural flow of cultural trends. What elements and what points in time bring about the most overall change is strictly relative to personal experience and perspective, it isn't something that should be treated as fact. You can argue all day long how much the early 1960s still felt like the '50s and not the "true" '60s, but they were still the '60s by definition.
* Comparing two completely separate decades. Yes, history repeats itself, but you can literally theorize about the similarities between any two decades. Posting an entire thread about how the 2000s are the new 1950s or whatever isn't offering any real insight into anything.
* Generationology threads are an extension of decadeology in that they involve arbitrarily labelling someone or something born in or from a certain part of time based on personal standards. Generations may have cultivated distinct cultural identities, but there's never going to be a pure consensus over what their boundaries are, especially seeing as many individuals share traits of more than one or don't even relate to their own generation in the first place.
* Future-speculation threads, particularly those about predicting when the next cultural shift is going to take place. Oh my god, I am so sick of seeing these types of topics flooding the InThe00s boards. Nobody knows for sure what is going to happen down the road, let the future play out first before you try to literally define it. Even if we really were that prescient, that doesn't excuse all the arbitrary era-labelling. It's seriously bad enough when threads revolve around defining entire eras under such obtuse details, but to apply that to a time that hasn't even unfolded yet? How desperate can you possibly be just to talk decadeology?
To clarify a bit further, here are some examples of threads that would be okay, and ones which would not:
Okay:* How would you describe the '90s?
* Were the 2000s more changeful than we give credit to?
* What was your favourite part of the '90s? The early '90s, the mid-'90s, or the late '90s?
* Was 2017 better or worse than 2016?
* Do you consider yourself a millennial?
* What musicians do you think will be most popular in the coming year?
Not Okay:* When did the '90s truly start?
* Was 2006 the year everything changed?
* List the specific boundaries of the early '90s, mid'-90s, and late '90s.
* List the specific differences between 2017 and 2016.
* What's the first year for Gen Y babies?
* When are we going to enter the early 2020s era for music?
SharksFan99 , you can confirm whether or not these points are accurate.