What would be your red lines?
Decide now what would make you act on AI, and what you'd do. Then share it.
Hold to it
Make it stick
Three ways to hold yourself to your red lines, whether you share them or not. Do as many as you like.
-
Add why you care, and the excuse you'd be tempted to accept (not shared; your copy and your witness email include it)
See what you'll save
-
A witness: someone who'll ask you about it if one of your lines is crossed.
Opens a draft, sent only when you press Send. It includes every finished line, even private ones.
See the email
To: add their email above
Has it
happened?
Has a line been crossed?
Things that have happened in AI, with their sources. If one crosses one of your red lines, say so here and see what you said you'd do. Your answers stay in your draft.
Found in the news (only you see these)
Suggested by the news finder. Nothing appears on the page until you add it.
Add something that happened (only you see this)
The wall
Other people's red lines
About
About and privacy
Who runs this page
Your AI Red Lines is run by Jonathan Hind, and hosted on Google's Firebase. Until November 2026 it was called The Rotblat Line. It's an independent project, not connected to the Global Call for AI Red Lines or any other campaign.
What stays in your browser
As you type, your draft is saved in this browser's local storage, on this device: every line (finished or not), your name and what you do, why you care, your witness, your review date, which of the three steps you've ticked, and your answers under “Has a line been crossed?”. It isn't sent anywhere unless you share it or send it, or choose to keep it on all your devices.
- Unless you choose to keep it on all your devices, another browser or device won't have it, even signed in to the same Google account.
- Clearing your browsing data deletes it, and so does closing a private window. Some browsers, like Safari, may also delete it if you don't come back for a while.
- Start over clears it straight away.
So save a copy, and keep it somewhere you'll find it.
Keeping your lines on all your devices
This is optional and needs a Google sign-in. Before anything is stored, your browser locks your whole draft with a key made from your passphrase (AES-256 encryption). Only the locked copy is stored in this page's database, under your account's ID, with the time it was last stored. Your passphrase never leaves your browser, so nobody can open the stored copy without it: not whoever runs this page, and not Google. Like any website, this relies on the page's own code doing what it says.
- This browser keeps the key, so you only type your passphrase once on each device. Signing out, or stopping, removes the key from this browser.
- Changes you make on one device are stored a few seconds later, and appear on your other devices.
- Nobody can reset your passphrase. If you forget it, the stored copy can't be opened. This browser's copy and your saved files aren't affected.
- Stop keeping it deletes the stored copy from the database.
- If you've shared your red lines from this browser, signing in keeps them shared, and lets you change or remove them from your other devices.
Who sees what
- Your saved copy, and the email to your witness: every finished line, including private ones, why you care, your witness, your name and your review date. Your witness sees whatever you send them.
- What you share, only if you press Share: your finished lines that aren't private, your name unless you leave it off, and what you do, if you've filled it in. They go on the wall and behind your link, so anyone who opens this page can see them. The image shows the same, and posts show your first shared line.
- Unfinished lines stay in your draft. Nothing saves, sends or shares them until you finish them.
- Your email address, only if you ask for a monthly check-in: it isn't shown anywhere on the page. Whoever runs this page can see it.
Monthly check-ins
This is optional. If you ask for one, the email address you type is stored in this page's database, under the same ID as your shared red lines, with when you asked. Nothing more is sent until you press the link in a confirmation email. If you never press it, the address is deleted after 7 days.
Once a month, the page emails you the lines you've shared and asks whether one has been crossed. Private and unfinished lines aren't in it: they never leave your browser. The emails go through Resend, an email service, which handles your address and the email's text in order to deliver it.
You may also get an email when whoever runs this page adds something under “Has a line been crossed?” that may cross one of your shared lines. To find whose lines it may cross, the page sends the wording of the shared lines of people who get check-ins to Claude, an AI made by Anthropic, with what happened. Your name and email address aren't sent. An AI can be wrong, so the email asks you to decide.
- Every email has a link that stops them and deletes your address. So does Stop the check-ins on this page, and so does removing what you shared.
- To stop the page being used to flood someone's inbox, it counts the emails sent to each address that day, under a scrambled form of the address, and deletes the count the next day.
Sharing without an account
Sharing doesn't ask who you are. The first time you share, Firebase gives this browser a random ID, with no name or email address attached, and your red lines are stored under it. If you ask for a monthly check-in, the address you give is stored under that ID too. Your link (the one ending ?by=) contains that ID. Sharing also stores when you last shared, to limit it to once every 30 seconds.
Keeping your lines on all your devices needs a Google sign-in, run by Firebase. Firebase keeps a record of that Google account, including your email address and name, so you can sign in again. Your email address isn't shown on the wall, but whoever runs this page can see it in Firebase.
Sharing without your name
"Share without my name" is ticked unless you untick it, and leaving your name blank does the same. That keeps your name off the wall, your link and the image. It doesn't hide what you do, if you've filled it in, or anything in your lines that could identify you.
Changing or removing what you shared
Use the same browser: edit your red lines and press Update what you shared, or press Remove what I shared. Removing deletes them from the wall, and your link stops showing them. It also stops any monthly check-ins and deletes your email address. Your draft here stays as it is. The note of when you last shared stays, and screenshots or images people have already posted can't be taken back.
Another browser, or this one after you clear its data, can't change or remove what you shared, unless you'd signed in with Google to keep your lines on all your devices. Whoever runs this page can remove anything on the wall.
Other services
The page loads its fonts from Google Fonts and the wall's code from Google's servers, so Google receives your IP address when you visit. It has no analytics or advertising scripts.
Buttons that open Gmail, Google Calendar, Outlook, X, LinkedIn, Bluesky or WhatsApp pass text to that service when you press them: the email to your witness includes your whole document, posts on X, Bluesky and WhatsApp include your first shared line (LinkedIn gets only the link), and calendar reminders include only a general note and this page's address.
If you ask for an email when something is added under “Has a line been crossed?”, your address goes to Buttondown, the newsletter service, which keeps it until you unsubscribe. It never goes into this page's database, and the emails don't include your lines.
The things that have happened, under “Has a line been crossed?”, are added by whoever runs this page, with a link to each source. Which of your lines one crosses is your answer, kept in your draft. If you get check-in emails, an AI may point one out to you by email. Its guess isn't stored with your lines or shown to anyone else.
Los Alamos
1944
The one who left
Joseph Rotblat was a Polish physicist working in Liverpool when the war began. In 1944 he went to Los Alamos with the British team on the Manhattan Project. He had one reason for being there: the fear that Nazi Germany would build an atomic bomb first.
By the end of 1944 it was clear Germany would not. The reason he had come no longer held, so he resigned and went back to Liverpool. He is the only scientist known to have left the project on grounds of conscience.
Most of us never write down why we're somewhere. When things change slowly, nothing tells us to stop. Rotblat had that moment because he knew his reason. This page started as The Rotblat Line, to help you write down yours: the specific things that would make you act, and what you'd do, whether that's quitting, speaking up or finally getting involved. He was born on 4 November, so that's the day it suggests re-reading your red lines each year.
- 1908Born in Warsaw on 4 November
- 1944Joins Los Alamos, and leaves before the year is out
- 1957Co-founds the Pugwash Conferences
- 1995Shares the Nobel Peace Prize with Pugwash
- 2005Dies in London, aged 96