HeyBrian

A second brain that writes itself — and reminds you.

Dump in notes, docs, and screenshots. Brian organises them into cited, interlinked pages, keeps them current as you add more, and resurfaces what matters before you forget. Not a chatbot you query — a brain that works while you don't.

go to brain observatory →beta · invite-only
raw in · it organises · it reminds you
  1. 01

    ingestDump in the mess

    Notes, transcripts, PDFs, screenshots — whatever you've got. No formatting required.

  2. 02

    organises itselfIt writes the pages

    Brian drafts interlinked, cited wiki pages — and keeps them current as you add more. A knowledge graph, not a folder.

  3. 03

    reminds youIt works while you don't

    Ask anytime and get cited answers — and Brian resurfaces what matters before the deadline, or before you forget.

watch it work · live

Seed a brain, ask it, and watch the answer walk your own pages — no edits, no setup. This is the real interface.

bmy brain/ 7 pages
chatgraph
01 · feed it
speak to your brain…
send
brain graph
calendarjapan-20262026-q2deckflightssprintnotes
why it's different
every answer is cited

The brain doesn't tell you what it knows. It tells you which page said it.

brian

Your Q2 goals (wiki/goals/2026-q2): finish the investor deck — due Friday (wiki/admin/calendar) — and book the Japan trip for spring (wiki/travel/japan-2026, capped at $1,400).

Every claim opens a page in your vault. No sources = it says so. Nothing borrowed from training data.

the brain that organises itself

Hand it the mess. An agent decides what each fact deserves — a page, an update, a cross-link.

in
notes.docx
slack.txt
whiteboard.jpg
💬 typed in chat
out
wiki/decisions/0042
wiki/systems/billing
wiki/people/sam
wiki/sprints/2026-w18

New facts update pages instead of duplicating them. Cross-linked. Editable. Exportable as plain markdown.

every conversation feeds the brain

It remembers what you've been thinking, not just what you've uploaded.

today you ask

“What was my position on long context vs RAG?”

brian

You concluded they compose (wiki/ideas/open-questions). You said it three weeks ago in chat.

Half-formed takes, the question you asked once and forgot — all retrievable the same way as your formal notes.

four ways people use it

Same engine, different vault. Each is a brain with its pages cross-linked — ask a question that spans them and the answer traverses the graph and cites every source.

My second brain
a session — not just a one-shot
you

What did I decide about the Tokyo trip, and what's still open before I go?

brian

The decision, from your notes: spring, not autumn — for the cherry blossoms and the cheaper Mar–Apr fare window; budget capped at $1,400; Kyoto for a few days mid-trip (wiki/travel/japan-2026). It also closes the "visit Japan" line on your Q2 list (wiki/goals/2026-q2). Still open, in order of lead time: 1. Renew your passport now. It expires in May; Japan wants 6 months' validity, and renewal runs ~4–6 weeks — that's the long pole (wiki/admin/documents). 2. Refill your prescription before you go — last refill was January, so you'll run out mid-trip (wiki/health/checkups). 3. Your car-insurance auto-renew hits while you're away — card on file expires this month, so update it or it'll bounce (wiki/admin/finance). 4. Mum's birthday is the 14th — you'll be in Kyoto. Send something ahead (wiki/people/family). 5. Book flights — still unbooked, and you're already over the $1,400 ceiling on current prices (wiki/travel/japan-2026).

you

Did I settle on travel insurance?

brian

Not yet — you compared two providers last month and parked the decision until flights are booked (wiki/admin/finance). The cheaper option excludes adventure activities, so if the Hakone hike is still on the itinerary, the upgrade matters.

you

How am I tracking against Q2 goals overall?

brian

Three of five on track, two slipping (wiki/goals/2026-q2): Japan trip is committed, the investing-reading list is half done (wiki/learning/investing), and the daily-routine cadence is holding. Slipping: the strength-training block (missed two weeks per wiki/routine/daily) and the family-call cadence (last entry was three weeks ago in wiki/people/family).

brain · 36 connected pages
2026-q2financedocumentsdailycheckupsjapan-2026investingfamily
every page links to the ones it references — answers traverse this
vault index · sample of 36
  • wiki/goals/2026-q2.mdthis quarter's goals + progress
  • wiki/admin/documents.mdpassport, license, renewals
  • wiki/admin/finance.mdsubscriptions, insurance, taxes
  • wiki/routine/daily.mddeep-work block, gym, evening review
  • wiki/health/checkups.mdappointments, bloodwork, meds
  • wiki/travel/japan-2026.mdspring trip planning
  • wiki/people/family.mdbirthdays, anniversaries
  • wiki/learning/investing.mdnotes from books + podcasts