Purple Party
Viewing as Priya Raghunathan
Purple Party

A reader’s guide to the demo

Live demo
Repository
Time to walk it properly
About 20 minutes

Read this first: the content does not matter

Every person, post, essay, poll, forecast, transcript and dollar figure in this demo is invented. Nadia Osei does not exist. Nobody has ever forecast the Providence congestion pricing vote. The numbers are placeholders chosen to make screens legible.

None of it is the point. The content exists only so the mechanisms have something to operate on.

What is real is the reasoning behind each mechanism, which sits in the repository’s docs folder — nine research memos and eleven specs covering what the evidence actually says about misinformation, belief revision, bridging algorithms, and why most interventions in this space fail. If a feature seems arbitrary, the memo explaining it is in that folder.

So: judge the mechanics, ignore the prose. The one thing worth checking in the content is whether it reads as politically even-handed — that was designed for, and there is a ledger tracking it — but that is a hygiene property, not the substance.

The problem this is built on

Three findings shaped everything.

Finding 1

People no longer trust their own ability to tell

Trust in news has hit a record low — 37% globally, 25% in the United States — and 62% now say they cannot tell real from fake online, up four points in a year. That figure is rising faster than trust is falling.

This is the harm worth designing against. Not that bad information exists — it does, in volume, and increasingly it arrives from sources with authority and enormous reach rather than from obscure sites. The harm is the second-order effect: once anything can be fabricated, everything becomes deniable, including the true things.

The Alan Turing Institute found no measurable effect of AI disinformation on recent European election outcomes and still identified a real cost — “persistent erosion of confidence in what is real and what is fake.” That erosion is the product opportunity.

Finding 2

Everyone falls for it, at nearly identical rates

In a nationally representative test of ten viral false claims, 82% of Democrats and 81% of Republicans believed at least one. Fewer than 1% identified all ten as false. Which claims landed differed enormously by party. How often people were fooled did not.

Other results point the same way: on basic world-development facts the public scores worse than random chance; in a test of 2,000 people shown real and synthetic media, two got a perfect score; and the very-online score worse than the elderly, not better. Whatever this is, it is not a defect of the other side.

Finding 3

People are reachable — the obstacle is social, not informational

The “backfire effect” largely failed to replicate across 10,100 subjects; corrections generally work. AI dialogue durably reduced conspiracy belief by about 20% in a Science study, holding at two months. A single ten-minute doorstep conversation shifted roughly 1 in 10 voters, durably and resistant to counterargument.

So the barrier is not that minds cannot be changed. It is that changing your mind in public is expensive — permanent, searchable, quotable, and dunked on. And the research is blunt about the cost of the obvious alternative: social exclusion causally increases the beliefs it is meant to suppress.

The one design principle

Everything below follows from a single sentence:

The binding constraint is the social cost of changing your mind. Every feature either lowers that cost or rewards someone for paying it.

That is why this network has no quote-dunk, no ratio, no follower-count prominence, and no misinformation badge — each of those raises the cost. And it is why the platform’s highest-status act is being wrong in public and fixing it.

If you only take one thing from this demo, take that inversion.

The walk — six stops, in order

1The Feed
Open the feed →

Look at the first post. Two things.

  • Under it: “Unexamined — Nobody has challenged anything here. That is not a pass.” That sentence exists because of a specific finding: labeling only some content as false makes unlabeled false content seem more credible — the implied truth effect, n ≈ 6,800. Most platforms create that problem by fact-checking selectively. This one refuses to let silence read as verification.
  • Above it: a line like “You steelmanned her position on housing supply in March.” Every post carries exactly one relational fact chosen for you — not a biography, and never a score. The most useful thing to know about a stranger is how you two relate.

Then note what is missing: no like count as a headline, no reply-count prominence, and Disagree is a first-class button that does not reduce reach. Registering disagreement without punishing the author is what makes the ranking work.

In the left rail, “Bridged” ranks by how far agreement spreads across the divide, not how much of it there is. Forty people spanning the spectrum outrank four hundred who agree with each other.

2Updates
Open updates →

The single most important page in the demo. A plain chronological stream of people changing their minds, with the reason attached. No reactions, no ranking, nothing else.

Scroll to Marcus Adeyemi, three weeks ago — the one where he updates not about a fact but about whether his opponent was arguing in bad faith: “Dana’s version of it isn’t. I still disagree with her.”

Ask yourself what it would take to make that a normal thing to post. That is the entire product question.

3Forecasts
Open forecasts →

Dated, resolvable predictions. Reality resolves them. Records are permanent.

Find the resolved question on state minimum wage. Nadia Osei — who campaigned for the policy — forecast 25% that it would pass, against a community mean of 58%, and was closest. Her note: “Wanting a thing and expecting it are separate questions.”

This is the only unfakeable credential on the internet. Assessment scores are estimates from a questionnaire. A five-year forecast record is a fact, and reality — not a moderator, not an AI panel, not a vote — is the adjudicator. Nobody’s Brier score is red or blue.

Note there is no leaderboard. Distributions and individual calibration curves only.

4Steelman
Open steelman →

Write the strongest case for a position you oppose. People who hold it judge whether it could have come from one of them.

Read the near-miss — the submission on immigration and wages that is factually accurate and fails anyway. A judge’s feedback: “Every qualifier here is real, and every qualifier is also how you’d write it if you were trying to make the claim disappear.”

That failure teaches the thing the whole platform is about: passing requires capturing how a position is held, not just what it asserts. In the published research, people who pass are significantly less likely to view opponents as ignorant, irrational or immoral.

Prompts ship in mirrored pairs, always — both sides of every question open simultaneously, so there is never a side being tested.

5Common Ground
Open common ground →

Members submit positions privately; an AI drafts candidate group statements; members rank, critique, and ratify by vote. In the source research (Science, 2024), AI-drafted statements earned higher endorsement than human mediators and left groups less divided than before.

Two things to look at.

  • The ratified statement ends by naming what remains unresolved. That is the model — the goal is not agreement, it is an accurate map of the disagreement.
  • The session that ratified nothing. A consensus tool that shows only its successes is advertising.

This is also the one place on the site where purple runs at full strength. Purple here means both clusters converged — it is earned, never decorative. A screen with no purple means the community has not found common ground yet, and the palette is telling you so.

6The Assessment
Open the assessment →

How you get in. Four sections, one per scoring layer.

  • The familiarity inventory contains concepts that do not exist. Any claimed familiarity is, by definition, self-enhancement.
  • The confidence intervals cannot be faked without knowing the answers — a behavioral measure of intellectual humility with no social-desirability surface at all.
  • There is no Register button. The network is invitation-only, so a public sign-up affordance would be the most off-thesis element on the site.
  • The results describe, they do not grade. No composite score, no rank, no personality archetype — every number is shown against the community distribution, so you see that you are normal rather than deficient.

The required field to notice: “What would change my mind.” It is a falsifiability condition as a form field, it is very hard to write for a position you hold tribally, and it filters authorship without gatekeeping it.

Worth a look if you have longer

What we deliberately did not build

The omissions carry as much of the thesis as the features.

Unconstrained quote-post
The most efficient humiliation device ever shipped on a social network. Replaced by quote-to-steelman and quote-to-build-on.
A misinformation badge
Self-report and detection both fail at exactly the people they would need to catch. And exclusion causally increases the beliefs it is meant to reduce.
Any leaderboard, including for forecasting
Turns calibration into competition, which selects for volume and risk-taking over honesty.
Dark-triad scores on profiles
The instrument selects backwards — manipulators suppress, scrupulous self-critics flag. You would badge your most honest members.
Filtering people out by politics
Filtering in to seek a perspective is bridging. Filtering out is bubble construction. Same field, opposite intent.
Streaks, badges, confetti, trending
Rewards showing up rather than thinking.

There is also a dogpile damper running in the feed spec that no major platform ships: when replies to one person spike from a single cluster, the system stops notifying them, stops distributing to the pile’s neighbours, and tells would-be repliers “37 people have already made this point.”

Where the ideas came from

Almost nothing here is new. What is new is the combination, and which parts were left out. Links open in a new tab so you do not lose your place.

The feed form factor, and the counter-example. Most of what this demo does is a deliberate inversion of X: no quote-dunk, no ratio, no engagement ranking. But Community Notes is X’s, and it’s the single biggest borrow in the whole thing.
Bridging-based ranking. A note only shows if people who usually disagree both rate it helpful. That mechanic runs the entire feed.
JubileeYouTube
Middle Ground and Surrounded. Proof that watching people who disagree talk to each other is compelling rather than worthy, and that structure is what makes it work. Deliberation Rooms are basically Middle Ground with a moderator that counts talking time.
Wikipediapage history
Public version history, talk pages, disputes attached to specific sections. The idea that an edit trail makes a document more trustworthy, not less.
Threaded discussion, topic-scoped communities, and a hard lesson about moderation cost scaling badly.
Diffs as a first-class object. “Changed in v4” as a credential.
Big Fiveand HEXACO, MBTI
The intake, but inverted: segment people rather than score them, and never hand anyone a composite number. See also HEXACO and MBTI.
Metaculusand Good Judgment Open
The Forecast Ledger, and the finding that calibration is a real, stable, trainable skill. See also Good Judgment Open.
Polisand vTaiwan
Clustered opinion maps, where the output is a picture of where a community actually stands rather than a winner. Used at scale by vTaiwan.
Structured argument as a first-class content type.
Objections attached to sections, revision in response, and the reviewer credited. Slow, adversarial, and it works. eLife is the clearest published-review model.
Braver Angelsand deep canvassing
The format of a structured conversation between opponents, and the evidence that ten minutes of it beats a decade of messaging.
Two people who disagree writing one document together.
The Steelman Exchange, almost directly.
The calibration questions, and the finding that on basic world facts the public scores worse than a chimpanzee picking at random.
Pew Researchpublic quizzes
How to give someone their score without grading them: show them the distribution and let them locate themselves.
Nostr zapsand Ko-fi
Small, direct, note-attached tipping, without a subscription relationship or a creator-tier hierarchy. See also Ko-fi.

What I would like your reaction to

Not the copy. These.

Is the inversion believable?
Can a network actually make “I was wrong” the high-status move, or does status find a way to reassert itself somewhere else?
Does the gate kill it?
A 35-minute assessment is real friction. Does that buy a community worth having, or just a small one?
Where does this get gamed?
Bridging ranking is vulnerable to coordinated cross-cluster endorsement rings. Forecast records reward abstention-gaming. Tipping invites patronage. Which of those breaks first at scale?
What is the smallest version?
If you had to ship one surface, which one carries the thesis on its own? My answer is Updates. I am not confident in it.
Does it feel human?
The whole premise is a verified-human space where AI is visibly an instrument and never an impersonator. Check the AI blocks — they show “7 of 10 models”, never a name, never a face, never a first-person voice. Does that read as honest, or as cold?

Notes for the technically curious

Static HTML, no build step, no backend, no dependencies. Deployed from the public directory. Every interaction resolves in-page and resets on reload; anything that would need a server says so rather than faking it. Light theme only, deliberately. Design tokens live in design/2026-09-visual-direction.

The reasoning lives in docs — start with INDEX.md. The file 00-demo-content-guide.md carries the political-balance ledger in section 7 (currently 40% political across 115 items) and the counting rule, plus a note about the one thing that ledger cannot catch: it counts topics, not direction, and a screen can sit inside target while still making one side the object of study. That happened once here and had to be fixed structurally.

Start the walk at the feed Every figure on these pages is fixture data. The reasoning is not.