I normally do not announce chapter edits as posts – I would drive you all crazy if I did, since each chapter starts out as a first draft when it hits the blog, and typically gets at least a dozen edits before I’m done poking at it. This edit was significant though, not just a restructuring of what was already there, changed spelling, or grammar improvement.
If you see this post after you have already read chapter 4.23, I have just completed an edit of the end of the chapter, describing in clearer detail what Bob was doing and why, a tiny bit more detail about how nuclear weapons are supposed to work, and also adding in some extra content where he’s talking to himself about things not immediately related to surviving the bomb.
I hope this makes things a bit clearer. As far as I am aware, my portrayals of nuclear warheads and antimatter explosions are accurate to the real world.