A lot of older 1.0 information is framed as people at the time not having the info we had now.

Like the 7th calamity was assumed to be the final one because the previous 6 had been linked to each of the 6 elements, the 7th would be all of them at once aspected to Umbral and that would be that.

Same sort of deal for the void and the songstress and such, people just didn't know the real deal. The one that struggles to fit the most is the echo, can't really handwave that one away as people not knowing the truth when it's stuff they experienced first-hand.

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I do wonder where the original plot for 1.0 would have gone, I wonder if they still have rough storyboards outlining the general intentions. I'd love to see them.