Okay, I need to rant about a song. The music is awesome. But check the 
wordshttps://www.youtube.com/watch?t=55&v=0EHzC0xD0rM&feature=youtu.beLove the instrumentation. But the 
lyrics go crazy.
There's alot of bits that are cool in isolation like
-> At the linked time stamp the language barrier is broken in order to rhyme, "one-dimension, two-dimension, three-dimension" with..."easy game, easy game"  
 -> (0:22) intro is interrupted for a bridge which switches between a conversation in another language and scat
-> (0:57) singer trails off at the end of "a supernova is spreading from west to east"(non-reversible process!) -> does it again at "the way there is fine, 
but what about coming back -> music 
explodes, so to speak
but what really sets dimension x apart is how well it all 
comes together. 
If we go back to that intro, our singer is greeting the eventual recipient of their "wonderful, milky kiss" as "
Everett", a physicist and "p..hd" who theorized about there being parallel worlds. While the singer is being driven "crazy" by the rules, "everett"(or really dandy?) is telling them of all these different worlds and "blows their mind" with how their "alternate worlds always overlap and never interfere". Ultimately, they end up believing and pondering things the "rules" of their world say are impossible(forever expanding universe, never-ending dream,) with a "wonderful, milky kiss(x2)" sandwiched between. 
Without looking any further, we've got a functional motivation behind a functional character arc tying into a functionally developed relationship. Cool. But as I said, Etsuko 
connects everythingThere are actually 
several non-reversible processes mentioned: "Things get harder when they cool", "things melt when they're heated", "a supernova spreading from west to east", "a dream of never-ending dream", and "will this universe expand forever?" 
Two of those processes, mentioned before "this world is so full of rules, it's going to drive me crazy", actually follow the rules of "this" world. The rest, mentioned after, follow 
other rules you might find in "pararlell" worlds. Instead of rising in the east and setting in the west, a supernova spreads "west to east". This actually ties to "one-dimensions, two-dimension, three-dimension" referencing an episode where a 1d being forced a 3d universe to phase with his 2d universe in order to impress a 4d ex. In such a universe, a supernova could spread west to east. 
A dream that never ends is self-explanatory and as we currently understand things, the universe will eventually 
stop expanding.
But between these there is a further distinction. Every process before "the way there is fine, but what about coming back" is finite/ending. Every process after is "endless/infinite". And this gets us to our overarching payoff here. "the way there is fine, but what about back" isn't just a note about the processes explicitly highlighted. It is also alluding to an "Invisible" irreversible process taking place as our singing character starts looking to escape the rules. Sucked into everett(or dandy's?) "alternate worlds", there's no going back. They are so deep in, the next step is wanting it to last forever. And pretty much all of the song builds to this. It's a straightforward plot, but the magic is in the execution.
Just looking at the lyrics isn't going to do this justice but I don't want to be writing a whole essay here so i'll do a flyby on the other stuff
-> the instrumentation is extremely intricate and diverse yet very very precise. whether it's the staggered sax(there is a notional term for what produces that sound i cannot recall) with "hello", all of 0:39-0:53, or 1:12-1:26(so many sounds yet they all synergize perfectly). Even "minor" parts like the electronic bass develop as the song progresses (ex: the psuedo kick getting an echo at 0:12)
-> the dynamics, timbre, and speed of the singer's singing(at times melodic talking) maps very well to where the character is emotionally. 0:21 to 0:38 is an excellent example of this where the singer goes from slow and cool talking with everett, to fast as they intellectualize, to somewhere in the middle as they stop beating around the bush
-> song switches between a wide variety of vernacular seamlessly(out-there metaphor -> direct conversation -> causal phrases and saying -> scat -> cheesy pun -> flowerly and poetic)
-> english is used instead of japanese when the singer is faking being on-top of things/in control("hello dandy", "easy game, easy game", "kiss"): i  think the combination of thick accentuation, a language with uneven stress, and extremely base vernacular works well here 
Alright. Rant over. Will revert back to basketball for future posts 
