[Henry hasn't any true personal investment in her tale, of course. Hearing the revelation of her father’s ultimate failure doesn’t even register as truly disappointing — only slightly, in that someone else’s very intriguing goal of culling humanity (or all of life) into a manageable state didn’t pan out.]

I can’t imagine how difficult it must have been to reverse a process like that.

[Death is death is death. Isn’t it? Time travel is simply not a consideration in his mind.]

So you said the results weren’t stable. What do you mean by that?