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For questions about the video game "Portal 2", a first-person puzzle video game created by Valve Corporation. It is the sequel to Portal (2007). Use in conjunction with the [portal] tag. Questons about gameplay mechanics are off topic and should be asked on Arqade (https://gaming.stackexchange.com/).
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What is the meaning behind the "Turret Opera" at the end of Portal 2?
Edit: I was going to spoiler tag this in case people didn't finish the game.. anyway rewording the entire thing.
There are two main theories about the meaning of the ending. One focuses on what occur …