Board Thread:Speculation House/@comment-27687864-20160127193452/@comment-24891101-20160203193158

Because it's a first order analysis. Everything within the canon leads us to assume she's dead, and it's only storycraft concerns, tropes, and external frameworks that suggest she may not be. The null hypothesis is that she's dead. Higher-order analyses can take those into account, but a naive analysis accepts the null.