Early on, a story's meaning and rationale seem pretty obvious, but then, as I write it, I realize that I know the meaning/rationale too well, which means that the reader will also know it - and so things have to be ramped up. ↗
None of us are nuclear experts, but we know that if there is a melt-down and breach of containment, that's clearly the most odious thing that could happen. ↗