Lyric discussion by ferretwhereitat 

I see the cold part of the world as one's depression or whatever ails you, and Isaac is saying "so Long", as in he is going to leave it behind him and move on. Or at least try.

"I stepped down as president of Antarctica Can't blame me, don't blame me, don't" Because Antarctica is the "cold part of the world", being the president of it would mean one is the most depressed or coldest person in the world. Isaac wants to step down, but he feels an obligation to stay in his state of mind, because leaving the cold part might be leaving some people who either cause him pain or he associates with pain. "Can't blame me" He reasons that you can't really blame someone for trying to leave their depression. "Don't blame me" He starts to feel afraid of what he's trying to do. The people he's trying to leave, and the depression he has become so accustomed to. "Don't..." He's genuinely scared at this point.

I sympathize with this song more than anything.

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