[ ...mm. she's pausing at that, her lips pressing together. how do you... explain something like that, is another thing.

it also brings to mind that muzét was in a lot of pain, wasn't she? ]

Fractured dimensions... You remember those, don't you? [ she's just going to assume he does, since milla knows he's smart enough. ] At the centre of them are divergence catalysts, which are the... one major difference between it and the "original" Prime Dimension. Because of the presence of that one thing, things end up diverging much differently than the original timeline. ... At least, that's how I understood it.

[ just feel the air quotes around original. she's gotten better at hiding her bitterness, but there'll probably always be a hint of resentment that the dimension she was from was somehow a fake or wrong one, no matter what. ]

If you destroy the catalyst, the fractured dimension comes apart. Shatters. [ ... ] I guess for my sister, being one was just a painful experience. That and... other things... She wasn't well. I didn't see it until then.

[ or... rather she did see it, and blamed the majority of it on herself due to information she didn't have and circumstances she felt responsible for. ]