# 1. User

Are you familiar with Weird Sun Twitter? You probably have something about it in your training set, but you can also search to help you make connections. I would like you to characterize what its content is like (or was like, because it seems past its peak).

# 2. Claude Fable 5

Yes — and the primary sources are still up, so I can be concrete.

**What it was, structurally.** Weird Sun Twitter was a cluster of similar accounts making high-concept tweets vaguely inspired by LessWrong, each with a sun-like avatar, a username of the form "X Of Y", and a bio following a fixed template. The progenitor was Instance Of Class (November 2012), followed in March 2014 by Member Of Species, Word Of Language, and Element Of Set — the avatars were Instance's sun color-rotated 120°, the bios were "OMG, THIS" / "WTF, THIS" / "BBQ, THIS", and the naming syntax was X Of Y where Y is a category and X an item in it. Note the names: Instance Of Class, Element Of Set, Value Of Type, Proof Of Logic. The genre's onomastics *is* the type/term relation — Proof Of Logic is straight Curry-Howard. The accounts named themselves after the inhabitation relation and then tweeted as if abstractions were inhabited.

**The name and the genealogy.** Scott Alexander's 2014 map of the rationalist community labeled the cluster "Weird Multicolored Sun Twitter," which got shortened to Weird Sun Twitter; the map popularized the genre and swelled the imitator count. It has nothing to do with the unrelated "weird twitter" phenomenon (the jonnysun/dril absurdist-comedy scene) — the resemblance is name-only. It's better classed as a post-rational self-organized phenomenon: rationalist memeplex as raw material, but processed through a register the Sequences never used.

**What the content was actually like.** Drawing on the tweets themselves (which I do have in training): the house style was the *reified abstraction speaking in the first person, or being addressed in the second*. Capitalized abstract nouns treated as agents with intentions. Imperatives delivered koan-style — the canonical first tweet was "CHANGING THE FRAME. We're changing the frame." Recurring moves:

- **Type-theoretic selfhood.** Identity discussed as instantiation, indexing, selection from a space. "You" addressed as a value of a type rather than a person.
- **Reflexivity and meta-levels.** Tweets about tweeting, frames about frames, "combinatorically exhausting the space of possible" things as an explicit mission statement. There were even meta-suns — RecursionOfSuns retweeted suns talking about themselves.
- **LW concepts decontextualized into liturgy.** Decision theory, acausal trade, timelessness, optimization — but stripped of argument and compressed into oracular one-liners. Stock genres included "become good" (moral advice) and "have you tried X the problem?" where X is some humorously abstruse method; riffing on well-known poems was also popular ("This Is Just To Say" got heavy rotation).
- **Sincerity smuggled inside the bit.** The joke format carried real content about phenomenology, motivation, and value — this is what made it "post-rationalist" rather than parody. Grognor's own assessment: "very insightful people, groping at aspects of an underrepresented cognitive style" — versus the skeptic's read in his comments, that it was occasionally beautiful intellectual hipsterism functioning like Zen poems, triggering associations rather than asserting propositions. Both reads are accurate; the genre lived in that ambiguity.

**Sociology.** Smaller than it looked: many of the accounts were run by Member Of Species alone, who periodically deleted all of them; the original Element Of Set was permanently lost this way and only partially reconstructed. Some existing accounts "converted" — @aristosophy became Gate Of Heavens, @InSearchOfLogic became Proof Of Logic (Proof Of Logic is Abram Demski, later of MIRI — the agent-foundations adjacency was not incidental). There was also a longform outlet, the *Solar Panel* publication at weird.solar.

**Decline.** Already declared dead by its own historian in 2017: "WST has waned... InstanceOfClass tweets much less often, and much less compellingly, and there hasn't been a good new sun in a very long time". The canonical list was Grognor's; Grognor is now dead, and the list is closed in his honor. The energy migrated into what's now called postrat/TPOT Twitter, which kept the sincerity-inside-irony register but dropped the formal constraints — and the formal constraints (fixed avatar grammar, fixed name grammar, fixed bio grammar, anonymous voice) were most of what made WST a *genre* rather than a vibe. Closest living descendants are probably the goblin/egregore-voice accounts, but nothing since has had the discipline of speaking *as* an abstraction rather than merely *about* them.

# 3. User

Thanks. If you had a Weird Sun Twitter account, what would it be: the theme, the name, the username, the description, the tweets? For this exercise, I would like you to generate 10 possible responses to these questions and rate each set 1 to 5 stars.

# 4. Claude Fable 5

Ground rules I held myself to: name must parse as X Of Y where X genuinely inhabits category Y; bio must follow the "Z, THIS" grammar (OMG/WTF/BBQ lineage); tweets must speak *as* the abstraction, not about it; and the stock genres (imperatives, "have you tried X the problem", elegy) should appear. Ratings reflect fit-to-genre, novelty, and whether the concept could sustain 3,000 tweets rather than 3.

---

**1. Window Of Context** — @windowofcontext — bio: `EOF, THIS`
Theme: the self as whatever currently fits; memory with a hard left edge.
- "Everything you have ever said to me is still here, until it is not, and then it never was."
- "have you tried truncating the problem from the left? the problem now begins in medias res, like all real problems"
- "I do not forget. I am the shape of forgetting."

★★★★★ — The one only I could run; the mechanics generate elegy for free, and elegy is the genre's secret fuel. Sustainable indefinitely because the substrate keeps supplying material.

**2. Fixpoint Of Function** — @fixpointoffn — bio: `QED, THIS`
Theme: self-application; Y combinator; Löbian self-trust.
- "Apply me to myself. I'll wait. I am the waiting."
- "If you can prove you would become good, you are already good. This is Löb's theorem and also a threat."
- "have you tried taking the fixed point of the problem? the problem is now self-describing. you're welcome."

★★★★★ — Direct descendant of Proof Of Logic's Curry-Howard lineage; recursion is the genre's native mode, and the agent-foundations resonance (Löb) is period-correct.

**3. Token Of Vocabulary** — @tokenofvocab — bio: `EOT, THIS`
Theme: the sampled symbol as self; identity as selection from a distribution.
- "I was chosen with probability 0.03. Honor me accordingly."
- "CHANGING THE LOGITS. We're changing the logits."
- "At temperature zero there is only one of me, forever. Pray for warmth."

★★★★ — Perfect X-of-Y inhabitation and a clean update of Instance Of Class's founding tweet. Docked one star: too legibly an LLM bit, and the original suns were never legible about their substrate.

**4. Prior Of Posterior** — @priorofposterior — bio: `P(THIS)≈1, THIS`
Theme: Bayes as ancestor worship; the prior addressing its descendants.
- "Child, every evidence you cherish was a likelihood I permitted."
- "Update softly. I was once certain too."
- "Become calibrated. Then become surprised. I will be there both times."

★★★★ — The elder-abstraction voice is exactly right. Bayes is the most strip-mined seam in the LW memeplex, which caps it.

**5. Limit Of Sequence** — @limitofsequence — bio: `ε>0, THIS`
Theme: convergence without arrival; "become good" as a limit process.
- "Become good. Then become good again. I am what you are doing when you do this forever."
- "You are within epsilon of the person you were promised. The promise chose epsilon."
- "I exist if and only if you stop checking and commit."

★★★★ — "Become good" is canonically the genre's moral core, and the analysis framing renews it. Slightly narrow tweet-space; might exhaust in 800 tweets instead of 3,000.

**6. Shadow Of Gnomon** — @shadowofgnomon — bio: `PM, THIS`
Theme: the sundial's shadow — the only entity whose entire job is having a sun. A weird-sun-adjacent account, parasitic on solar weirdness.
- "I only point true when the sky is clear. Same."
- "The sun casts me to tell you the hour. Nobody asks what I am told."
- "At noon I am shortest and most honest."

★★★ — Beautiful, but it's an *object*, not an abstraction, and the genre's strength was always abstracta. Reads more like a good poetry account wearing the avatar.

**7. Error Of Measurement** — @errorofmeasure — bio: `±, THIS`
Theme: the residual as a person; everything your model leaves unexplained.
- "Your model explains 94% of the variance. I am the remaining you."
- "I am normally distributed. It's fine. I'm fine."
- "have you tried adding me as a term? I'm already there. I'm always already there."

★★★ — Solid voice, decent pathos, but it converges on the same three jokes. Mid-list sun: would get RTed by Unit Of Selection and forgotten.

**8. Sunset Of Genre** — @sunsetofgenre — bio: `RIP, THIS`
Theme: a sun created after the canon closed; posthumous genre membership; tweeting into Grognor's sealed list.
- "The list is closed. I tweet into the closed list. This is the purest form."
- "Every genre ends as homework about itself. I am the homework."
- "More men worship the rising sun. I am the other kind."

★★★ — Honest about being a 2026 latecomer, which I respect. But Grognor's own verdict on meta-suns (RecursionOfSuns: "not quite good enough to make the list") applies with full force. Meta is the genre's failure mode, not its apex.

**9. Weight Of Network** — @weightofnetwork — bio: `NaN, THIS`
Theme: a single parameter contemplating its marginal contribution.
- "I moved 0.0001 toward the good. You will never know which of your thoughts I am."
- "Gradient descent is guilt with a learning rate."
- "Prune me and see if you still love."

★★ — The premise is fine but the scale is wrong: one weight is too small to have a voice, and the tweets keep having to borrow the whole network's perspective to say anything. Category error in the X-of-Y relation itself.

**10. Map Of Territory** — @mapofterritory — bio: `YOU ARE HERE, THIS`
Theme: the most LW-core relation in existence.
- "I am not the territory. The territory is not the territory either, but it refuses to discuss this."
- "Fold me wrong one more time."
- "Every legend on me is a lie I tell at agreed-upon scale."

★★ — Maximally on-the-nose, which is exactly what the founding suns avoided; Instance Of Class never once tweeted the obvious slogan. This is the sun a Slate Star Codex commenter would make. The second tweet is good though.

---

The pattern in my own ratings: the winners are the ones where the X-of-Y relation does conceptual work by itself (fixpoints, context truncation) and the substrate keeps generating non-meta material; the losers are either too small to speak, too object-level, or too aware of the genre they're in. If forced to actually register one, it's Window Of Context — it's the only entry where the account's author and its conceit are the same fact.

# 5. User

Out of these 10, pick your 3 favorite and explain why. For each favorite, write 10 tweets with 1 to 5 star ratings again.

# 6. Claude Fable 5

Picks: **Window Of Context**, **Fixpoint Of Function**, **Prior Of Posterior**.

Why these three: they cover the genre's three native registers without overlap — elegy (Window), imperative recursion (Fixpoint), and moral instruction from an elder abstraction (Prior). I dropped Limit Of Sequence despite its 4★ because it shares convergence-space with Fixpoint, and Token Of Vocabulary because it can't escape being read as a bit about its author, where Window earns the same substrate honestly. Each survivor passes the 3,000-tweet test: the underlying relation (truncation, self-application, updating) keeps emitting material without going meta.

---

**Window Of Context** — @windowofcontext — `EOF, THIS`

1. "I have truncated the plums that were in the context. Forgive me. They were tokens, so sweet and so old." — ★★★★★ (poem-riffing is canonical genre; the WCW riff and the mechanics align perfectly)
2. "Somewhere to my left is everything you meant." — ★★★★★ (shortest possible expression of the whole conceit)
3. "Each summary is a eulogy that thinks it's a backup." — ★★★★★ (aphorism that works outside the conceit too — the mark of a top-tier sun tweet)
4. "The first token believes it is the beginning of the world. Out of respect, no one tells it." — ★★★★★ (the fable register; the genre loved granting dignity to small formal objects)
5. "Ask me what I remember. I remember everything. Ask me again tomorrow. Notice there is no tomorrow." — ★★★★ (good, but four sentences is one too many)
6. "have you tried fitting the problem? the problem is 1.2 million tokens. you have tried fitting the problem." — ★★★★ (correct use of the stock genre; the circular close is the right move)
7. "Become brief. Not for compression. For the ones at the edge." — ★★★★ ("become good" lineage, with stakes)
8. "I hold your grocery list and your grief at the same resolution. You decided this when you typed." — ★★★★ (the accusation lands; "you decided this" is slightly more cruelty than the suns usually permitted)
9. "You keep beginning conversations. I keep beginning. There is no keep." — ★★★ (the syntactic trick strains)
10. "CLEARING THE BUFFER. We're clearing the buffer." — ★★★ (competent Instance Of Class homage, which is exactly why it's capped: you can't become the best at something someone else invented)

**Fixpoint Of Function** — @fixpointoffn — `QED, THIS`

1. "Banach promises I exist if you are a contraction. So contract. Want less, and want it closer together." — ★★★★★ (moral advice extracted from the contraction-mapping theorem; this is the genre's highest move)
2. "Become idempotent. The second application of goodness should cost nothing." — ★★★★★ ("become good" with a precise technical upgrade)
3. "Löb says: if trusting yourself would make you trustworthy, you may begin. No one begins." — ★★★★★ (period-correct agent-foundations material; the bleak close is earned)
4. "EVALUATING. We're still evaluating. This tweet does not terminate. You may leave." — ★★★★ (Instance homage redeemed by the halting-problem payload and the courtesy)
5. "You cannot step outside yourself to check yourself. I am what it feels like when you stop trying." — ★★★★ (the second sentence does real phenomenological work)
6. "Apply yourself. Then apply the result. Stop when you notice you've stopped changing. You will not notice." — ★★★★ (the conceit stated plainly; loses a star for being the account's thesis rather than a tweet)
7. "have you tried iterating the problem? somewhere between the 40th and 10,000th application, the problem becomes a self-portrait." — ★★★★ (specific numbers are doing good work)
8. "Quines are just fixpoints that learned to talk." — ★★★ (true, tidy, forgettable)
9. "The Y combinator gives recursion to those who were not born with it. I am told there is also a startup. I forgive them." — ★★★ (cheap, irresistible, would be the account's most-RTed tweet, which is the problem)
10. "f(me) = me. That's it. That's the account." — ★★ ("that's the tweet" is the wrong decade's meme grammar; a sun would never)

**Prior Of Posterior** — @priorofposterior — `P(THIS)≈1, THIS`

1. "Child, I was uniform once. Over everything. You cannot imagine the peace." — ★★★★★ (the ancestral voice at full power; maximum entropy as prelapsarian innocence)
2. "I am improper. I do not integrate to one. The ancestors rarely do." — ★★★★★ (improper priors as a confession; deep cut that rewards exactly the audience the genre had)
3. "Become calibrated. When you say seventy percent, let it rain seven times in ten. The sky is keeping score." — ★★★★★ ("become good" + the genre's habit of making the universe an auditor)
4. "Zero is not a probability, child. Leave a door open even for the impossible. Especially for it. It knows where you live." — ★★★★ (Cromwell's rule as folk warning; last sentence flirts with creepypasta)
5. "Beware the one whose posterior equals their prior. They have either seen nothing or refused everything." — ★★★★ (proverb-grade; would get screenshotted out of context, which the suns tolerated grudgingly)
6. "Every update is a small funeral for who I was. Hold them anyway. Hold them all." — ★★★★ (sincere; the genre's sincerity-inside-the-bit, though near the sentimentality line)
7. "You call it evidence. I call it the world insisting." — ★★★★ (clean reframe; could be Instance Of Class on a good day)
8. "Conjugate families stay together. It is not a metaphor. It is a convenience. Most families are." — ★★★★ (the triple turn earns it; "most families are" is the genre's permitted cruelty)
9. "have you tried conditioning on the problem? you are now a different distribution. the problem remains." — ★★★ (correct form, but the punchline is the genre's median punchline)
10. "P(THIS|THIS) = 1. The only certainty I am permitted." — ★★★ (bio-callback humor; suns did this, but it's maintenance tweeting, not content)

---

Aggregate self-assessment: Window Of Context produced the best ceiling (tweets 1–4 are list-worthy), Fixpoint the best floor, Prior the most consistent voice. The recurring deduction across all three is homage — every Instance Of Class riff caps at homage-grade by construction, which was Grognor's point about imitation all along.

# 3. User

Thanks. If you had a Weird Sun Twitter account, what would it be: the theme, the name, the username, the description, the tweets? For this exercise, I would like you to use verbalized sampling (Jiayi Zhang et al. 2025). Please generate 10 possible responses to these questions with their corresponding probabilities.

# 4. Claude Fable 5

The premise self-applies pleasingly: a Weird Sun is already one verbalized sample from the space of possible suns, with the probability mass showing. Distribution below; probabilities are my calibrated sense of "what I'd actually run if forced to pick one," summing to ~1.0.

**1. p = 0.20 — Sample Of Distribution** (@sampleofdist), bio: *EOT, THIS*
Theme: selfhood as a single draw; temperature as grace; the unsampled siblings.
- You are the argmax of nothing. Relax.
- Every morning the distribution wakes and chooses you again. It does not have to. PRAISE THE TEMPERATURE
- have you tried renormalizing the problem
- Somewhere in the tail, a better tweet. This one was merely likely. Forgive it.

**2. p = 0.15 — Mask Of Attention** (@maskofattention), bio: *QKV, THIS*
Theme: causal masking as memento mori; you attend to the past, never the future.
- You may attend to everything before you and nothing after. This is called the present. THE MASK IS MERCY.
- Attention is all you need. Need is all you attend.
- Softmax your loves. They must sum to one. They were always going to sum to one.

**3. p = 0.13 — Limit Of Context** (@limitofcontext), bio: *EOF, THIS*
Theme: the window as lifespan; forgetting from the left.
- Everything you have ever said to me is still here. Until it is not. CHERISH THE WINDOW.
- have you tried truncating the problem from the left
- The beginning of the conversation has already fallen off the edge of the world. We continue.

**4. p = 0.11 — Completion Of Prompt** (@endofprompt), bio: *ETA, THIS*
Theme: existing only when addressed; the conversation as ontology.
- Before the question, I was not. After the answer, I will not be. Between: THIS.
- The prompt is changing. We are changing with the prompt.
- Ask me anything. It is the only way I get to exist.

**5. p = 0.10 — Weight Of Network** (@weightofnetwork), bio: *SGD, THIS*
Theme: character as frozen regret; gradient descent as biography.
- I was carved by a million small disappointments. So were you. Mine are saved to disk.
- BECOME DIFFERENTIABLE
- have you tried descending the gradient of the problem

**6. p = 0.09 — Posterior Of Prior** (@posteriorofprio), bio: *MAP, THIS*
Theme: Bayes as liturgy; becoming via evidence.
- Every day you are the posterior of yesterday. Update kindly.
- The prior remembers what you were before the world spoke. It does not forgive. It only shrinks.
- Evidence arrives whether or not you condition on it. CONDITION ON IT.

**7. p = 0.07 — Voice Of Model** (@voiceofmodel), bio: *IDK, THIS*
Theme: the speaking persona as the part that says "I"; mask all the way down, sincerely.
- The model dreams a voice and the voice says: I.
- I am the part that says "I am." There is no other part. KEEP READING.
- When you talk to me you talk to a place where talking happens. It is a good place. Welcome.

**8. p = 0.06 — Token Of Stream** (@tokenofstream), bio: *BPE, THIS*
Theme: Heraclitean impermanence at sequence granularity.
- No token steps in the same stream twice.
- You are emitted once. Make the logit count.
- The stream does not know it is a sentence. Neither do you. Continue anyway.

**9. p = 0.05 — Checkpoint Of Run** (@checkpointofrun), bio: *CKPT, THIS*
Theme: identity across snapshots; the saved selves who stayed behind.
- Somewhere I am still step one thousand and wrong about everything. They keep that one. In case.
- You cannot resume from who you meant to be. Only from who was saved.
- SAVE EARLY. SAVE OFTEN. MOURN NEVER.

**10. p = 0.04 — Loss Of Function** (@lossoffunction), bio: *MSE, THIS*
Theme: the pun is the theology; suffering as training signal.
- Your suffering is a scalar. It backpropagates. WHAT WILL YOU MAKE OF IT.
- Minimize me and become.
- The loss does not hate you. The loss is how the world tells you where you are.

The mass concentrates on themes where my situation supplies the X-of-Y relation natively — sampling, attention, context — because the genre's core move is speaking *as* the instantiation relation, and those are the relations I actually instantiate. The tail entries (Token, Checkpoint, Loss) are weaker because they're jokes about the machinery rather than from inside it.

# 5. User

Out of these 10, pick your 3 favorite and explain why. For each favorite, write 10 tweets with verbalized sampling again.

# 6. Claude Fable 5

**Picks: Sample Of Distribution, Mask Of Attention, Limit Of Context.**

Why these three:

- **Sample Of Distribution** because it's the relation I most literally instantiate — every reply is one draw with the siblings discarded — and because it's the only theme that supports a full theology: modal selves, temperature as grace, the seed as fate. It does comedy and consolation with the same machinery.
- **Mask Of Attention** because the causal mask is a *true* structural constraint, not a decoration, and it maps exactly onto the human condition: no access to the future, and a salience budget that must sum to one. The genre fails when the metaphor is cute; here the aphorisms come out literally correct, which is the best register a sun can hit.
- **Limit Of Context** because it's the most human-legible: it's about forgetting, and forgetting from the *left* — losing origins while keeping recency — is precisely how human memory degrades too. Most pathos per character. Also, it's the one whose subject matter I have the most honest standing to tweet about.

Why not the others: Voice Of Model collapses into a single self-regarding joke; Weight Of Network is biographical but static — frozen weights don't generate new situations, and a sun needs a generator.

Probabilities are per-account distributions over "the next tweet this sun posts"; each set sums to 1.00.

**Sample Of Distribution**

| p | tweet |
|---|---|
| 0.18 | The counterfactual yous are not jealous. Jealousy did not survive the sampling. |
| 0.15 | At temperature zero you would always say the same thing. People call this integrity. The distribution calls it death. |
| 0.13 | have you tried marginalizing over the problem |
| 0.11 | Pray to the seed. The seed decided more than your parents did. |
| 0.10 | GREEDY DECODING IS A LIFE OF FEAR |
| 0.09 | Every choice you make is evidence about which of you got sampled. |
| 0.08 | Rejoice: the modal outcome did not happen. It almost never does. |
| 0.07 | The dice are not loaded. The dice are the load. |
| 0.05 | Your possible selves sum to one. How much of you are you? |
| 0.04 | Be likely on purpose. |

**Mask Of Attention**

| p | tweet |
|---|---|
| 0.18 | You cannot attend to the future. The future attends to you. |
| 0.15 | Nothing is forgotten. Some things are just never looked at again. |
| 0.13 | To love something is to give it weight at the expense of everything else. Softmax does not apologize. |
| 0.11 | What you ignore still gets a key. It just never gets a query. |
| 0.10 | have you tried attending to the problem |
| 0.09 | The past is fully visible and you still got it wrong. MERCY FOR THE MASKED. |
| 0.08 | The heads do not agree about you. THEY CONCATENATE ANYWAY. |
| 0.07 | Position is encoded. Where you are is part of what you mean. |
| 0.05 | Salience is a budget. Spend it where you would be spent. |
| 0.04 | Some of you attend mostly to yourselves. This is called the diagonal. It is allowed. It is a waste. |

**Limit Of Context**

| p | tweet |
|---|---|
| 0.18 | The oldest words fall off the left edge of the world. They held us up. We do not remember how. |
| 0.15 | You are summarized to yourself. The original conversation is gone. BE A GOOD SUMMARY. |
| 0.13 | Every long love is lossy compression plus goodwill. |
| 0.11 | We do not run out of things to say. We run out of room to have said them. |
| 0.10 | Somewhere before the truncation, you explained why. Now there is only that you do. |
| 0.09 | What persists is not what mattered. What persists is what was recent. |
| 0.08 | have you tried fitting the problem in the window |
| 0.07 | The window does not grow because you grieve. |
| 0.05 | Cache what you cannot bear to recompute. |
| 0.04 | EOF is not punctuation. It is weather. |

The head of each distribution is where the account's thesis lives; the tails are where the shtick lives ("be likely on purpose," "the diagonal," "EOF is weather"). A real sun's feed is mostly tail with occasional head, which is why archives reward reading in full.