{card.title}
+{card.body}
+ACC. NO. 0001 · PERMANENT COLLECTION
++ Tangent is a note-taking app built like a card index: every + thought gets a card, every card gets an address, and any address + can point to another. Niklas Luhmann kept ninety thousand of + these and called the box his second memory. Yours types faster. +
+ +{card.body}
++ ↑ a working sample — click an{" "} + address to pull its card +
++ A global hotkey, a blank card, two seconds. No titles required, + no folder to choose, nothing to decide while the thought is + still warm. +
+
+ Type [[ and point a card at any other. Links run
+ both ways, so every card quietly lists everyone who has ever
+ cited it.
+
+ Each morning Tangent resurfaces a few cards beside whatever + you’re writing. Most you’ll dismiss. The third one is why you + keep a box. +
+FROM THE ARCHIVE
++ The sociologist Niklas Luhmann published seventy books and some + four hundred articles. Asked how, he answered — politely, and more + than once — that he didn’t do it alone: the card index did most of + the work. He wrote his slips, filed them by address, and let the + box surprise him. +
++ He called it his Zweitgedächtnis — second memory. He also + admitted it was a better conversation partner than most + colleagues. +
++ — filed 1981, retrieved whenever needed +
+ ++ Thoughts not filed are due to disappear. +
+ + Start your file — free + ++ Local-first. Plain text. The box lives on your machine. +
+RECALL, DEMONSTRATED
++ You don’t need the right words. You need the wrong ones you actually + remember. +
+A NOTE-TAKING APP SHAPED LIKE A MEMORY
++ Tangent catches the fragments you’d otherwise lose and quietly + wires them to everything they touch. Months later, when you need + the whole idea, it’s there — assembled. +
+ +HOW IT WIRES
++ A global hotkey opens a blank line over anything. Two seconds, + no app-switch, no title. The thought lands before it fades. +
++ Connect any two notes and the link runs both ways. What you + wire together gets recalled together — that’s the whole + neuroscience, borrowed. +
++ Overnight, Tangent resurfaces a few old notes beside your new + ones. Ideas come back like dreams: at the right moment, + slightly rearranged. +
+Free for your first 1,000 thoughts. Private by default.
+A field guide to your own thinking
++ Tangent is a note-taking app that treats ideas as living things. + Plant a fragment, let its roots find the others, and tend it now + and then. In a season you won’t have a pile of notes — you’ll + have a garden that thinks back. +
+ ++ Tangent tracks how alive each note is — so you always know what to + water and what to let be. +
+{s.copy}
++ Each day Tangent hands you a short trowel-load: two old notes to + reread, one pair that might want linking, one seedling going dry. + Tend it over coffee. Skip a week and nothing dies — gardens are + patient. +
++ Grows in plain text. Roots stay on your machine. +
+FIG. 01 — GENERAL ARRANGEMENT
++ Tangent is a note-taking application assembled from three + components: capture, links, recall. No moving parts you don’t + control. Erected in minutes. Holds for decades. +
+ + +FIG. 02 — CAPTURE, DETAIL
+ +FIG. 03 — RECALL, SECTION
+ +TABLE 01 — MATERIALS SCHEDULE
+| MARK | +ITEM | +SPECIFICATION | +RATE | +
|---|---|---|---|
| A1 | +VAULT | +PLAIN-TEXT NOTES, STORED ON OWNER’S DISK | +$0 | +
| B2 | +SYNC | +END-TO-END ENCRYPTED, ALL DEVICES | +$4/MO | +
| C3 | +NOTHING ELSE | +NO ADS. NO TRAINING ON YOUR NOTES. | +INCL. | +
GENERAL NOTES
++ Tangent is the second brain for people whose first brain is busy. + Below: an honest reconstruction of your current system. +
+ ++ {tidy + ? "9 thoughts filed · 4 linked · 1 wifi password forgiven." + : "9 thoughts at large · 0 findable · 1 grant at risk."} +
++ Two seconds from brain to board. A hotkey, a line, done — before + the kettle boils or the light turns green. +
++ Tangent reads the note, guesses the tag, and finds its friends. + You can overrule it. You won’t need to. +
++ Search “that soup thing” and get the nutmeg note. Wrong words + work — that’s the point of a second brain. +
+“I stopped emailing myself.”+
+ Free for messy people, forever. Pro when the mess gets ambitious. +
++ Tangent · design review +
++ Five landing page directions for the same brief. Open one, then use + the pill below — or keys 1–5 — to flip between them. +
+ ++ Trove captures notes from anywhere, links them automatically, + and resurfaces the right idea exactly when you need it. +
+ ++ Used by researchers and engineers at +
++ Every note is connected to related notes the moment you + save it. No folders to choose, no tags to maintain. +
++ One keystroke from any app. The thought lands in your + trove before you lose it. +
++ Search by meaning, not keywords. Half-remembered ideas + come back whole. +
++ There is no filing step. The work you used to do to stay + organized simply disappears. +
++ {step.body} +
++ “I stopped deciding where notes should live. I write things + down, and Trove hands them back at the right moment.” ++
+ Priya Raghunathan, Research Lead at the Calder Institute +
++ $0 +
++ Unlimited notes on one device. Plain Markdown files, + exportable any time. +
+ + Start free + ++ $8 + + {" "} + / month + +
++ Encrypted sync across devices, full version history, and + shared troves for small teams. +
+ + Upgrade to Pro + ++ Local-first, end-to-end encrypted, and yours in plain + Markdown forever. +
++ Trove holds every note, quote, and half-formed thought, then + connects them so nothing you write is ever lost. +
+ ++ {p.body} +
++ Scholars once kept commonplace books and card indexes because + memory is unreliable. Trove keeps the index for you. Ask for a + half-remembered idea in your own words, and the right note + returns, alongside everything written near it. +
++ Old notes resurface on their own when they become relevant to + what you are writing today. +
++ “Trove gives me what a shelf of notebooks never could: the page + I need, at the moment I need it.” ++
+ Tomás Ferreira, doctoral researcher at TU Delft +
++ For five centuries, serious readers kept commonplace books: + bound volumes of quotations, observations, and arguments + worth returning to. The practice worked because it separated + capturing from organizing. You wrote things down as they + came, and the book held them until they were needed. +
++ Modern note apps broke that bargain. They made you the + librarian: choose a folder, pick the tags, maintain the + hierarchy. The filing became the work, and the work made + people quit. +
++ Trove restores the old bargain with new machinery. You + write. The software reads what you wrote, ties it to what + you have written before, and brings it back when your + current work calls for it. The book keeps itself. +
++ Free on one device, with your notes in plain Markdown from the + first line. +
+ + Start free + ++ Trove links every note you take and brings the right one back the + moment it matters. +
+ ++ {slide.body} +
+ + Part {i + 1} of the Trove loop + ++ Folders made you the librarian. Trove fires the librarian and + keeps the library. +
++ Trove captures notes from anywhere, links them automatically, + and resurfaces the right idea exactly when you need it. +
+ ++ One keystroke from any app, a share sheet on your phone, + a highlight in your browser. The thought lands in your + trove before you lose it. +
++ Mac, iPhone, and the web, kept in sync with end-to-end + encryption. +
++ Notes connect to related notes on save. No folders, no + tags, no filing. +
++ Ask in your own words. Half-remembered ideas come back + whole. +
++ Notes live on your device as plain Markdown. Sync is + end-to-end encrypted, and we could not read your second + brain if we wanted to. +
++ “Capture is so fast it feels like muttering to myself. The + difference is that Trove actually remembers.” ++
+ “My reading notes finally talk to each other. Old highlights + resurface right when a draft needs them.” ++
+ Free on one device. Your notes stay yours, in plain Markdown. +
+ + Start free + ++ Trove is a plain-text second brain. Capture fast, link + automatically, retrieve by meaning. +
+ ++ {f.body} +
++ Organizing notes is unpaid clerical work. You do it badly, + resent it, and quit by February. +
++ Trove deletes the job. Notes are parsed, linked to their + neighbors, and indexed by meaning the moment they are saved. + The structure exists; you just never have to build it. +
++ {fact.value} +
++ A second brain, on paper terms +
++ Cortex is a note-taking application that remembers the way you do — + by association, not by folder. Write things down once, and find them + again by simply thinking out loud. +
++ Notes are not storage. They are soil. A thought written down today + cross-pollinates with one from last year, and something neither + contained appears between them… +
++ Fig. 1 — A note, with the connections Cortex found on its own +
++ {f.body} +
++ “I stopped organizing my notes two years ago. I’ve never found + things faster.” +
++ Mara Ellison — Research lead, 11,000 notes +
++ Free for your first thousand notes. Then $8 a month, forever. +
+ + Open your notebook + ++ Capture everything. Organize nothing. Cortex links your notes into a + living graph and recalls the right idea at the right moment. +
+ ++ Except forget, get tired, or need coffee. +
+{f.body}
++ Free up to 1,000 notes. Import from Notion, Obsidian, or Apple + Notes in one click. +
+ + Start remembering everything + ++ © 2026 Cortex Labs · Privacy · Terms +
++ Cortex is a second brain for people who refuse to organize + anything. Write it down once. It’s yours forever. It comes back + when you need it. +
+ + Start dumping → + +{c.body}
++ “I HAVE THE MEMORY OF A GOLDFISH AND THE OUTPUT OF A RESEARCH LAB.” +
++ Theo — shipped 4 products this year +
++ First 1,000 notes free. No tiers, no seats, no “contact sales”. +
+ + Take my money + ++ Cortex* — *not a medical device +
++ Cortex is a cozy second brain. Toss in notes, lists, and shower + thoughts — it tidies up, links things together, and hands them back + right when you need them. +
++ {s.body} +
++ “It feels less like an app and more like a very organized friend + who never forgets anything I tell them.” +
++ — Priya, kept 8,217 thoughts so far +
++ it takes 30 seconds to write your first note. it takes zero to + never lose it. +
+ + plant your first thought + ++ made with care (and many sticky notes) · cortex 2026 +
++ {"// a second brain for people who live in the terminal"} +
++ cortex captures notes at the speed of thought, links them into a + knowledge graph, and answers questions about everything you’ve ever + written. plain text. local first. zero lock-in. +
+ + {/* Install line */} +
+ $ curl -fsSL cortex.sh | sh
+
+
+ macos · linux · wsl
+
+ {cmd}
+ # {desc}
+ + {"// it does what it says on the man page"} +
+{"// design principles"}
++ every note is a markdown file on your disk. grep it, pipe it, + back it up with rsync. cortex adds the brain, not a format. +
++ recall runs locally. sync is optional and end-to-end encrypted. + if we disappear tomorrow, your notes don’t. +
++ capture in <50ms, recall in <500ms. a second brain you + wait on is a second brain you stop using. +
++ {"// free for 1,000 notes — then $8/mo"} +
++ cortex v2.0.1 — exit code 0 · © 2026 +
+