A few things you marked¶

A highlight is a judgement you made while reading: this mattered. A few days later, that judgement comes back once, in the Reader's own type, with one question: do you still think so?

Where it comes from¶

Home: the first card of Came back today (#704), answered right there with the same five answers. It is there only on a day something you marked is due. On other days there is no card, no empty box and no count.
Think: one line above the composer, A few things you marked are back for a second look, with Look again. It follows the same rule.

Both open the same few cards, at most five. With nothing due, the cards say Nothing you marked is back today and offer to close. You never see a notice about it.

The card¶

The passage is set the way the Reader sets it, with your font, size and theme (sepia, light or dark included). Under it you see where you marked it (Marked in Event sourcing › Events · October 2026), your margin note if you wrote one, and the question.

Key	Answer	What happens
1	Still think so	Your verdict goes to the judgement record as confirmed. The highlight comes back further out.
2	Changed my mind	A field opens. What you write becomes a new thought linked to the highlight, and the highlight itself is kept as it was. The old mark comes back further out too.
3	Open in the Reader	The review closes and the Reader opens the note at the passage.
4	Crystallize	Think's own crystallize opens on this highlight: the passage quoted, then your margin note, ready to edit. The note it makes cites where you read it. Making a note sets the highlight aside, as crystallizing in Think does.
5	Let it go	It never comes back. The thought stays in Think. Nothing is deleted.

← and → move between cards without answering. Esc closes. The dots show where you are, but there is no count of what is left. A key you press while writing in the field types into the field. Ctrl/Cmd+Enter keeps what you wrote.

Changed my mind: then and now¶

Changing your mind does not overwrite what you thought then. You get a pair:

In Think, the new thought sits under the highlight, in the same thread, marked Changed your mind. It answers the highlight the way a challenge does, and neither one is marked right.
On the note's story (in This note), a Changed your mind row shows the passage you marked before. Now links to what you think now, in Think. The words you wrote stay in Think, one click away, like every thought.

The new thought's frontmatter records what it revisits:

zfThought:
  id: 7c1d0e42
  respondsTo: 3f2a9c1e
  respondsAs: challenge
  about: Notes/Event sourcing.md
  revisesOf: 3f2a9c1e
  revisesQuote: "stores changes, not state"

Crystallize: a note that cites its source¶

A note crystallized from a highlight (from a card, or from Think) starts with the passage as a quote, followed by your margin note. Under the provenance it ends with a source:: line:

> stores changes, not state

Like a ledger — nothing is erased, only appended.

## Born from
- "Like a ledger — nothing is erased, only appended."

source:: [[Notes/Event sourcing#Events]]

With a canvas in the Crystallizes thoughts role, this text goes at the top of a note that flow builds — its steps choose the folder, the template and the properties — instead of a note at the vault root (Think → through your crystallize flow).

The link carries a locator: the note and the heading the passage sat under. Because of that line, the claim and source parser counts the new note as sourced: it holds a claim grounded in the note you read, so it counts as evidence wherever the new note supports another one. When the thinking goes back into the same note it came from, no source line is added, because a note does not cite itself. The source:: line is written outside the text you edit, so tidying the body cannot delete it by accident.

The schedule¶

It is fixed, visible and the same for everyone: 3 → 7 → 21 → 60 → 180 days, and then every 180 days for as long as you keep it.

A new highlight is due 3 days after you made it.
Still think so and Changed my mind move it to the next interval, counted from the day you answered.
Let it go retires it.
Highlights you set aside in Think, crystallized ones included, are not shown.

The schedule does not learn anything about you. It is not memorisation and you are not graded, so no algorithm judges how well you remembered. The same highlights on the same day always give the same cards: the longest-waiting first, then the oldest mark. If you skip a day, nothing changes. A card you leave is the same card tomorrow, and nothing grows into a number of things you are behind on.

Where it is kept¶

In the highlight's own file, in Think's folder. The review is a few lines in its zfThought frontmatter, next to the passage:

zfThought:
  id: 3f2a9c1e
  about: Notes/Event sourcing.md
  quoteExact: "stores changes, not state"
  reviewStage: 1
  reviewDue: 1791763200000
  reviewedAt: 1791158400000

These are ordinary writes of a thought, so they land in the write record and can be undone. A highlight that has never been reviewed has no review lines. Your notes are never written to.

How to verify¶

Command	Proves
`npx jest highlightReview`	the intervals, the deterministic choice, let it go, the frontmatter round-trip, and the cache-only check the doors use
`npx jest reviewCards`	the card: the passage, the five answers and their keys, the field, the arrows, no numbers, the empty state
`npx jest HomeModeRenderer.structural capabilityDoors`	Home's stack is gated on something being due; the capability has a door
`npx jest highlightCrystallize`	the passage and margin note in the body, the `source::` citation with its locator, the note parsed as sourced, no citation back into the same note, the revision round-trip
`npx jest storyRevision thoughtStoreReview`	the story's Changed your mind row with before and now; the store reads which thought revises which passage

By hand, in a vault with Think's folder set:

Open a note in the Reader, highlight a sentence and write a margin note. Expect: a thought in Think. Home shows nothing under Came back today.
In that thought's file, change at: to a time more than three days ago. Expect: Home shows the passage under Came back today, and Think shows the line above the composer.
Click Look again. Expect: the passage in the Reader's type, Marked in …, your margin note, Do you still think so? and five answers numbered 1–5.
Press 1. Expect: the cards end with That is all for today. The thought's file now has reviewStage: 1 and a reviewDue seven days out. Home's stack moves on.
Make it due again and press 2, type a sentence and press Ctrl/Cmd+Enter. Expect: in Think, a new thought under the highlight marked Changed your mind. In This note → story, a Changed your mind row with the passage under Before. The highlight's own text is unchanged.
On another due highlight press 4 and Create. Expect: a new note that starts with the passage as a quote and ends with source:: [[…#heading]]. Hover the link: it opens the note at that heading. The highlight is set aside in Think.
Make it due again and press 5. Expect: reviewRetired: true. It is never offered again.
Negative: with nothing due, open Home and Think. Expect: no card, no line, no notice and nothing written.