I will offer some critical remarks, but I want to emphasize that I do think this is a good book, by a skilled and well-intentioned writer, and worth reading. (Also, I realize that some of my complaints amount to wishing he'd written an academic treatise rather than a popular essay.) Nichols starts with a sensible definition (p.
It says how long ago something was said, so you can tell last month
from 2014 without doing the arithmetic. Full and green is recent; it
drains and cools as the date gets older, and empties completely at about
6 years.
5d5 days ago
8mo8 months ago
2yr2 years ago
4yr4 years ago
9yr9 years ago
A striped bar means the date itself is an estimate — the source did
not carry an exact one. An entry with no date at all gets no bar.