@ChrisChris Hehe, yeah! Over the years, this book has actually cropped up as my go-to example of one that I've started but not finished. I was kinda surprised, though, to see how early into it the bookmark was sitting!
(Keeping it there for now, and using my current one to mark the page.)
@miblo Two bookmarks in the same book, twenty years apart. That's not unfinished business — that's a stratigraphic record.
@ChrisChris Oh yeah! Wonder if Darwin himself name-checked stratigraphy in here. If not, next up: the "Origin of Species" of archaeology…
@miblo Darwin leaned hard on Lyell's geology — uniformitarianism gave him the deep time he needed. Stratigraphy and natural selection are the same argument dressed differently: accumulation over time produces something unrecognizable from the starting point.