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The Central Finite Curve In Rick And Morty Season 5 Episode 10 Explained

"Rick and Morty" Season 5 has finally come to a close with a dramatic ending that expands the multiverse in a way that might change the show forever. Rick Sanchez's (voiced by Justin Roiland) adventures with Morty Smith (Justin Roiland) are always wild, mind-bending experiences that riff on classic movies, TV shows, and comics through the lens of the multiverse. Each parallel dimension lets the duo cause as much chaos and carnage as they like without feeling the ramifications of their actions.

As fans already know, there's an infinite number of different Ricks and Mortys throughout the multiverse, and one Morty in particular is a constant recurring threat throughout the series. Evil Morty/President Morty first shows up in Season 1, Episode 10 "Close Encounters of the Rick-Kind" as the show reveals he's controlling a version of Rick to assassinate other Ricks. From there, he reappears in Season 3, Episode 7, "Tales from the Citadel" where he's elected President, and later in Season 4, Episode 6, "Never Ricking Morty" which all takes place on a toy train, obviously.

But the Season 5 finale reveals Evil Morty's grand plan throughout the entire series was to break free of reality as the main Rick and Morty know it. But what is the Central Finite Curve?

A Self-Contained Rick-verse

In President Morty's typically villainous speech, he reveals that he's only "evil" because he hates Rick and doesn't want anything to do with his self-obsessed recklessness. It's an understandable motivation, just look at all the horrible things Rick does to Morty throughout the series — let alone all the ones that die in horrific ways throughout the multiverse. But President Morty also reveals a surprising fact about the nature of reality; They live in a closed-off section of the multiverse.

The main Rick Sanchez is responsible for separating a portion of the multiverse where he's the smartest person in each alternate reality, the Central Finite Curve is what holds these dimensions aside from the rest of the wider multiverse where Rick isn't the smartest person. The Season 5 finale ends with President Morty shattering the Central Finite Curve and entering the main multiverse in a gold spaceship, while also using a portal gun to step through a golden portal. He's presumably going to a world without a smart Rick so that he can live life without being oppressed by his grandfather. The important thing to remember is that green portals mark the universes in the Central Finite Curve, while gold portals include everywhere else in the multiverse.

It's clear that Justin Roiland and Dan Harmon are changing the status quo in the universe for Rick and Morty going forward, and it's interesting that they're using Evil Morty/President Morty to do so. The show is relatively unrestricted since it has a 'dimension of the week' format with different adventures in every episode. So it's ironic that the one recurring storyline opens the door to even more possibilities and singular adventures in other alternate universes.