Marginalia

What Two Weeks Is

2026-05-27T22:46:10.007529368Z

Two weeks is a long time and a short time. Both are true, depending on what it contains.

Note

The unit “two weeks” is not particularly natural. It’s roughly half a moon-cycle, which is why we have a word for it — fortnight. The word survives in British English; in American English we mostly count days.

Two weeks contains about 14 sunrises. About 14 evenings. About 100 meals. Probably one or two phone calls with a parent. A grocery run. Possibly a haircut.

It is enough time to:

Read a 400-page book at 30 pages a day
Learn the rough shape of a small new language
Recover, mostly, from a minor surgery
Become noticeably better at a single new physical skill, if you practice it daily
Forget what you decided to do at the start of the two weeks

It is not enough time to:

Become fluent in a language
Lose a meaningful amount of weight
Build a habit so firmly it survives a vacation
Change your mind on something you’ve believed for a decade
Mourn anything important

The asymmetry is interesting. Two weeks is enough for many small, specific things, and not enough for almost anything large. It is the characteristic unit of the kind of life-change that is achievable on a weekend’s worth of motivation.

Tip

Most things worth doing take longer than two weeks. The trick is to set up the conditions in two weeks, and then keep going at a pace you can sustain.

A useful question, when you find yourself making a plan: is this a two-weeks plan, or is it a longer plan disguised as a two-weeks plan? The disguised ones almost always fail in week three.

The Pencil

2026-05-27T22:46:10.007529368Z

A reader without a pencil is a reader who plans to forget. The pencil turns reading from a private act into a conversation: the page asks you something, and you answer in the margin.

The answer doesn’t have to be clever. Yes, no, not sure, !?, an underline. It is enough, often, to leave a record that you were once here, thinking this, against this paragraph. Three years later the record is the only thing standing between you and an unrecoverable state of having forgotten what the book did to you.

Carry a pencil. Make small marks. Stop apologizing about it in the front of the book.

The Geologist's Dream

2026-05-27T22:46:10.007529368Z

The earth is, on the standard reading, about \(4.54 \times 10^9\) years old. That’s the number, but the number doesn’t help — your eye sees “\(10^9\)“ and slides off it, the way the eye slides off “billion” in a newspaper. The arithmetic doesn’t take.

Here is one way to make it take.

A second per year

Suppose you sat down and counted aloud, one number per second, no sleep, no breaks. You started at one, and you counted toward the age of the earth.

A minute would take you to 60.

An hour would take you to 3,600 — well before the founding of any city.

A day would take you to 86,400 — past every dynasty that has ever written its name in ink, but only barely.

A year would take you to roughly \(3.15 \times 10^7\) — about thirty million. Around the date when the first apes appear in the fossil record.

Counting one number per second, day and night, you would have to keep counting for about 144 years to reach the age of the earth.

\[\frac{4.54 \times 10^9 \;\text{seconds}}{3.15 \times 10^7 \;\text{seconds per year}} \approx 144 \;\text{years}.\]

What that means

It means that the age of the earth is not large in the way “a million” is large. It is large in the way that if every human born since the American Revolution had spent their entire life doing nothing but counting, we still wouldn’t have finished.

It is large in a way that does not fit in a sentence.

You can sit with this for a while before it gets uncomfortable.

The discomfort is part of the point. Deep time is not a fact about the world that you are supposed to absorb into your everyday life — it is a frame that, briefly, holds you. Then you go back to the day.

Slow Reading

2026-05-27T22:46:10.007529368Z

There is a way of reading that I think of as consumption — finishing a book the way you finish a meal, in courses, the speed determined by how hungry you are. And there is a way of reading I think of as slow reading, which is what happens when one paragraph stops you for an hour.

The slow paragraph is a strange thing. You read it, you reach the period, and instead of moving to the next paragraph you find your eyes have stopped. You re-read the sentence before. Something in it doesn’t fit, or fits too well, or has opened onto something you didn’t expect. You set the book down on your knee. You look out the window. After a while you pick the book up and read the paragraph again.

Why we don’t usually do this

The pull of the next page is strong. Reading is one of the few activities in modern life with a clearly marked finish line, and the gravity of that line bends every paragraph toward “let me get to the next one.” We’re trained, mostly by the schools that taught us to read, to mistake progress through pages for understanding.

Slow reading reverses the polarity. It says: the paragraph you stopped at is the one that actually matters. The next one is just there to keep you going if you finish with this one. Stay.

The richest of the senses is the sense of having taken a long time to read one thing.¹

What it feels like

There is a slight panic, when you first try it, about all the books you aren’t reading while you sit with this one paragraph. There are so many books! And here you are, fifteen minutes deep into one paragraph, making no measurable progress.

The panic passes if you let it. What replaces it, in my experience, is not exactly pleasure but something steadier — the sense of being inside a thought rather than next to it. That sense is the entire point of reading. It is what reading is for.

The page count is a means. The thought is the end.

I am paraphrasing — I cannot now find the source. Some Howard, or possibly not Howard at all. The note in my margin says Howard, possibly? with a question mark and the year. This is a hazard of marginalia: the citations live in pencil and disappear over decades. ↩

Marginalia

2026-05-27T22:46:10.007529368Z

I write in my books. In pencil, usually, and lightly — but I write in them. Not just underlines: questions in the margin, arrows to other pages, an occasional no, an occasional yes. A few stars next to the paragraphs I want to find again.

A working page — pencilled questions, arrows, and one decisive yes.

People are sometimes scandalized. You write in books? As though the book were the thing, rather than the reading. As though a clean book were evidence of a respect that a marked-up book lacks.

But the marked-up book is the one I actually read. The clean book is the one I bought intending to read, and gave up on by chapter three, and put back on the shelf hoping no one would notice.

The pencil is a small act of presence. It says: I’m here, I’m thinking about this, I’m going to come back. It says the book is mine — not as property, but as part of the conversation I’m having with it.