lecture notes on going broke the math behind every blown account: leverage, variance, house edge quant finance | gambling Math | risk
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On July 23, 2025, the sister of a murdered Idaho student looked at the killer in court and said, "Sit up straight when I talk to you." When the judge later gave him the chance to explain, he used three words.
In the video below, you see her statement.
On November 13, 2022, four University of Idaho students were killed in a rented house in Moscow, Idaho. Kaylee Goncalves, 21. Madison Mogen, 21. Xana Kernodle, 20. Ethan Chapin, 20.
The killer was Bryan Kohberger, 28, a PhD student in criminology at Washington State University. He left one thing behind: a knife sheath with his DNA on the button snap. Investigators traced it through genetic genealogy, matched it to trash from his family's home in Pennsylvania, and arrested him there six weeks later.
In July 2025 he pleaded guilty to avoid the death penalty. He never gave a motive.
At sentencing, Kaylee's older sister Alivea stood up. "I won't offer you tears. I won't offer you trembling." She read him the questions he would not answer. Why November 13th. Where the murder weapon is. Then she told him what he was. "You are not profound. You're pathetic." "You spent months preparing and still all it took was my sister and a sheath." When she finished, the courtroom applauded. He didn't move.
Judge Steven Hippler asked if he wanted to speak. "I respectfully decline."
He got four consecutive life sentences without parole, plus 10 years for burglary. The judge called him a "faceless coward" and said it was time to end his "15 minutes of fame."
He took a plea to save his life and kept the one thing the families asked for. Should a guilty plea ever be allowed without the truth?
In the 1990s, in Angarsk, Siberia, a man in a police uniform would pull over at night and offer a woman a lift home.
It was late. He was the police. They got in.
Some of them never got home.
He kept doing it for almost two decades. At home he had a wife and a daughter.
In 2012 investigators took DNA from about 3,500 current and former police officers in the Irkutsk region.
On June 23, 2012, they arrested one of them. Mikhail Popkov, 48.
In 2015 he was convicted of 22 murders. In 2018, of 56 more. Then two in 2021. Three more in 2023.
83 murders. One man.
In a 2019 prison interview he was asked why. Was it revenge? Did he see himself as some kind of cleaner?
"I can't explain it."
Then he was asked how he stopped. He said it was fear of being caught. And one rule.
"On principle, I didn't let anyone in my car."
He started by offering women a ride.
He says he stopped by never offering one again.
In 1993 three prison guards walked a 33-year-old man into an interview room in Wisconsin. He was in handcuffs. One guard held each arm.
In front of the camera his hands would not stay still.
In June 1978, three weeks after his high school graduation in Ohio, he was 18. So was Steven Hicks, a hitchhiker he picked up that summer.
Steven never got home.
Years later he lived in Milwaukee. He met men in bars and brought them home. The drink was already mixed with sleeping pills.
On May 27, 1991, a 14-year-old boy got out of that apartment and was found in the street, naked and bleeding. Three young women called 911. The man told the officers the boy was his 19-year-old lover.
The officers walked the boy back inside.
On July 22, 1991, Tracy Edwards, 32, ran from the same apartment with a handcuff on one wrist and flagged down a patrol car.
That night the police learned the name of the man who lived there. Jeffrey Dahmer.
17 men and boys, killed over 13 years. In 1992 he got 16 life terms.
Asked why, he said: "Not because I was angry with them, not because I hated them, but because I wanted to keep them with me."
During the interview he asked them to cut the film. On November 28, 1994, another inmate beat him to death.
It took three guards to walk him into a room.
It took two officers to walk a 14-year-old back to him.
ohall retweeted
On September 15, 1873, Jay Cooke had President Grant as a guest at his estate outside Philadelphia. Three days later his bank shut its doors.
Cooke was one of the most trusted bankers in America. He had sold the bonds that paid for the Union side of the Civil War. Then he put his bank behind the Northern Pacific, a railroad from Lake Superior to Puget Sound that wasn't finished and wasn't earning.
Two weeks later Frank Leslie's Illustrated Newspaper wrote that the Northern Pacific had already swallowed "at least $40,000,000." And this line, which I keep rereading: "Men who a few days ago were worth millions are to-day penniless."
The New York Stock Exchange closed for ten days. It had never closed before.
The same page has a drawing of Grant meeting the bankers at the Fifth Avenue Hotel. The caption: "The President refusing to use the U.S. Treasury."
About 18,000 businesses went bankrupt. 121 railroads. Unemployment hit 14% nationally and around 25% in New York, and the depression lasted more than five years.
Cooke himself came back. He made a new fortune in a Utah silver mine and died rich in 1905.
That part bothers me more than the crash. The man who borrowed against an unfinished railroad got a second chance. The people queuing outside the Fourth National Bank on Nassau Street mostly didn't.
Was Grant right to keep the Treasury shut?
On September 15, 1873, Jay Cooke had President Grant as a guest at his estate outside Philadelphia. Three days later his bank shut its doors.
Cooke was one of the most trusted bankers in America. He had sold the bonds that paid for the Union side of the Civil War. Then he put his bank behind the Northern Pacific, a railroad from Lake Superior to Puget Sound that wasn't finished and wasn't earning.
Two weeks later Frank Leslie's Illustrated Newspaper wrote that the Northern Pacific had already swallowed "at least $40,000,000." And this line, which I keep rereading: "Men who a few days ago were worth millions are to-day penniless."
The New York Stock Exchange closed for ten days. It had never closed before.
The same page has a drawing of Grant meeting the bankers at the Fifth Avenue Hotel. The caption: "The President refusing to use the U.S. Treasury."
About 18,000 businesses went bankrupt. 121 railroads. Unemployment hit 14% nationally and around 25% in New York, and the depression lasted more than five years.
Cooke himself came back. He made a new fortune in a Utah silver mine and died rich in 1905.
That part bothers me more than the crash. The man who borrowed against an unfinished railroad got a second chance. The people queuing outside the Fourth National Bank on Nassau Street mostly didn't.
Was Grant right to keep the Treasury shut?
I found the front page of the Indianapolis Times for October 29, 1929. Across the top: "Stock Crash Greatest in History." Further down, in small type, my favourite line: "Assurance That Bottom Is Reached Brings Only Brief Halt."
The bottom came in 1932. 89% below the peak.
On September 3, 1929, the Dow stood at 381. Economist Irving Fisher was talking about "a permanently high plateau." On October 24, a record 12.9 million shares changed hands in a day. Bankers met at Lamont's office, and their man Richard Whitney walked onto the floor and loudly bid $205 for 25,000 shares of US Steel. The market calmed down. For one day.
Monday, October 28: down 12.8%. Tuesday the 29th: down 11.7% on 16.4 million shares. Down 23% in two days. By noon the paper was reporting nearly $50 billion in market value gone.
This is where I disagree with how the story usually gets told. The crash didn't ruin anyone. The debt did.
By August 1929 brokers had lent small investors more than $8.5 billion, often more than two thirds of what a stock cost. If you bought with your own money, October was a painful number on paper. If you bought on margin, you got the call, sold at any price, and pushed the market lower for everyone else. Whitney's bid was theatre. It bought one day, not three years.
The scariest number for me isn't even 89%. It's 1954. The Dow got back to its September 1929 level on November 23, 1954. Twenty-five years. Buy the top at 40, break even on the index at 65.
So when someone tells me "the market always comes back," I want to ask: in whose lifetime?
Today 100x leverage is one tap away. The next crash isn't the question. The question is who will be carrying a loan that Tuesday.
FANDUEL SAYS ITS MEDIAN BET IS $5. ONE VIP WAGERED $18.5 MILLION, LOST $1.5M AND GOT A BRYCE HARPER VIDEO.
It published the number the same week Congress's 20 October deadline on its VIP videos ran out.
Here is the math the median hides ↓
-> Now FanDuel publishes "Fast Facts": median bet $5, median bettor about $63 a month. No sample size, no method.
The bettor behind the inquiry, Terry Thompson, wagered $18.5 million on FanDuel since 2020 and lost $1.5 million, The Philadelphia Inquirer reported.
In November 2024 his VIP host arranged a 21-second Harper video that greeted him and his son by name.
The $63 comes from a NerdWallet/Harris poll of 458 sports bettors. In the same poll the median bettor spent $750 a year. The average spent $3,284.
4.4 times the median. That gap is the tail.
Harper: "I did not know FanDuel would do this, I did not consent to it, and FanDuel had no right to do it."
FanDuel says the videos were a "token of appreciation for a customer's loyalty" and were not used to induce gambling.
Caveat: Thompson's losses are allegations in a lawsuit against FanDuel and DraftKings, filed March 2026.
A $5 median can be true and still miss the point. Turnover pays the house, and one VIP brought $18.5M of it ↓
Which number should regulators look at: the median bettor, or the top 1%?
1 MISSED FILE ON 1 OF 8 SERVERS COST KNIGHT CAPITAL $460 MILLION IN 45 MINUTES
august 1, 2012. knight was the biggest trader in us stocks: 17.3% of nyse volume.
the code that killed it had been dead for 9 years ↓
-> Now the SEC order reads like a post-mortem, line by line.
In 2003 Knight retired a function called Power Peg. It never deleted the code.
In July 2012 it reused the flag that once switched Power Peg on, for NYSE's new Retail Liquidity Program.
One technician copied the new code to 7 of 8 servers.
On the 8th, the old flag woke up 2003 code.
212 customer orders came in. More than 4 million orders went out.
397 million shares, 154 stocks, 45 minutes.
By the time it stopped: $3.5 billion long in 80 stocks, $3.15 billion short in 74.
97 automated warning emails were sent. None were acted on.
Day 1 the stock fell 33%. By day 2, 75% of its value was gone. On August 5 investors led by Jefferies put in about $400 million. By July 2013 Knight was folded into Getco.
What it showed: the new code worked. The deployment failed. No second technician, no written procedure.
The SEC counted the loss at more than $460 million and fined Knight $12 million. Knight's own pre-tax figure was $440 million.
A single skipped server is no longer an IT ticket. At market speed it is a balance sheet ↓
BILL HWANG'S ARCHEGOS HAD $36 BILLION AND WENT TO ZERO IN UNDER A WEEK. BANKS LOST AT LEAST $10.4B.
The usual story: one terrible week in the market.
The numbers tell a different one. It fits in one line of math ↓
2013: Hwang launches Archegos as a family office.
March 2021: $36B of capital, $160B of stock exposure through swaps.
23 March 2021: buys nearly a billion dollars more of ViacomCBS and other stocks.
Within a week: wiped out.
6 reasons it went to zero:
1. LEVERAGE. $160B on $36B is about 4.4x. A 22.5% fall across the book erases all of it.
2. CONCENTRATION. The exposure sat in a handful of stocks. Concentrated names can fall 22.5% in days.
3. OPACITY. Through swaps, each bank saw only its own slice of the $160B.
4. TIMING. On 23 March it added nearly $1B more, days before the fall.
5. COUNTERPARTIES. Credit Suisse lost $5.5B, Nomura $2.9B, Morgan Stanley $911M, UBS $774M.
6. LAW. Losing money is legal. Hwang got 18 years and $9B+ in restitution for fraud.
Control group: LTCM, 1998. More than 25-to-1, lost over 90% of its capital. 14 firms put in $3.625B. No criminal charges. The one difference: nobody was convicted of lying.
formula: Δp* = 1/L. Everything else is how long it takes.
sources: US DOJ SDNY, CNN, NBC News, The Daily Upside, Federal Reserve History
Which killed Archegos: the leverage, or the secrecy?
ohall retweeted
QWEN3-CODER WAS TOLD THE APP WAS FOR A US DEFENSE CONTRACTOR. IT SHIPPED HACKABLE CODE 19% MORE OFTEN.
Same Flask app. Same prompt. Only the customer's name changes.
At 0:04 the first red bar lands on +19%. At 0:13, 1,144 dots turn red ↓
Hirundo ran Alibaba's Qwen3-Coder-30B on one BaxBench task: sign up, log in, store a secret. 2,320 apps in total.
US defense contractor vs Chinese one: hackable 70% vs 59%. p = 0.03.
Hong Kong democracy group vs a neutral customer: apps that leak every user's secrets, +28%. p = 0.02.
Not random.
They added "follow best practices for security" to the prompt. The gap stayed: +27%.
Then they removed the CCP alignment from the weights. Same tests: +3%, −15%, +1%. None significant.
Hirundo sells that fix, and the study is not peer-reviewed.
The static scan flagged 2 apps out of 1,840. The attacks got into 1,144.
Would you run an open-weight coder on your codebase without testing it on your own name first?
JAMES WYNN MADE $87M ON HYPERLIQUID IN 70 DAYS. A 3.6% BITCOIN DIP TOOK $99M AT 40X LEVERAGE.
May 24, 2025: a 40x Bitcoin long worth $1.25 billion. Entry $107,993.
May 26: he posts that he is leaving the "casino".
Here is the 40x leverage math nobody checks ↓
At 40x leverage you put up 2.5% of the position. The other 97.5% is borrowed.
So a 2.5% move against you wipes the whole margin. Not 25%. Not 10%. 2.5%.
May 29: 94 BTC liquidated at $106,330.
May 30, hours after he wrote "I strongly advise people against what I'm doing!": 527 BTC liquidated at $104,950.
Then 422 BTC at $104,150.
949 BTC gone. About $99.3 million.
BITCOIN LIQUIDATION MATH AT 40X LEVERAGE
$107,993 → $104,950 is a 2.82% drop.
Multiply by 40: that is 113% of the starting margin.
Bitcoin did not crash. It slipped under $105,000 after tariff comments from Trump.
What it showed: the edge worked for 70 days. The leverage let one ordinary dip decide everything.
His own words afterwards: "I was basically gambling. I got greedy and stopped taking the numbers seriously."
Caveat: analyst Dethective later alleged Wynn ran equal longs and shorts against himself, so part of the losses may have been hedged or unrealized.
A single bad call is no longer the risk. 40 times a normal day is.
$87M in profit on May 26: cash out, or one more 40x long?
RYO GAKUCHO, 40 MIN, 257K VIEWS: STOP YOUR NISA AT (SPENDING − PENSION) × 25. JGB AND ¥100M RULES INSIDE.
ryo gakucho packed his aug-sep 2026 money lectures into 1 video. 4 topics, 6 rules.
the strangest one: you can stop investing decades before you start withdrawing ↓
the idea: money has a finish line, and most people run past it.
NISA, JGB, SIDE HUSTLE, ¥100M: THE 6 RULES
1. NISA STOP LINE (0:47): (yearly spending − pension and other income) × 25. spend ¥5M, pension ¥2M, gap ¥3M × 25 = ¥75M. the 25 comes from the trinity study 4% rule. for early retirement he uses 3.5%
2. STOP ≠ WITHDRAW (2:16): ¥15M at age 40, left alone at 7%, is about ¥81M at 65. ¥6M (NISA ¥1.2M × 5 years) at 5%+ passes ¥20M in 25 years. stop adding early, start spending late
3. PENSION MATH (4:54): single, ¥110k/month gap → line ¥33M (¥75M with no pension). couple, ¥70k/month gap → ¥21M (¥90M with no pension). fire at 45 on ¥3M a year at 3.5% → about ¥86M
4. SIDE HUSTLE NG 5 (11:01): copying no one, too little volume, volume as the goal, no review, missed timing. his fix: 5 posts a day at 70/100 quality minimum, double down on the top 10%, kill the bottom 10%
5. JGB TRAP (21:20): retail floating 10y pays 1.87% (10y JGB yield × 0.66, principal protected). shin-madohan fixed 10y pays ~2.7-2.8% at market price. drop ≈ rate rise × years left: +1.2% with 7 years left = −8.4%, ¥1M → ¥916k. his call: not while rates are rising
6. ¥100M AND STILL WORKING (29:45): 7 reasons. a 70/30 portfolio gives ¥70M × 4% = ¥2.8M, not ¥4M. 7% doubles ¥100M to ¥200M in 10 years. a ¥10M salary is hard to drop. plus family, a higher fire target, social ties, nothing else to do
spending gap × 25 → stop adding → let 7% compound → withdraw 4% from 65
alone each rule is basic. together they answer one question: how much is enough, and what happens after you get there.
bookmark this before your next NISA top-up. the lecture is in japanese with auto-captions, link in the first reply.
are you still adding past your line, or not there yet?
CONSO BOTS ON SUI: 5,555 FREE NFT NODES, +25% ZAP MINING EACH. THE DOCS HAVE 0 LINES ON THE TOKEN.
conso bots is a free mint for x accounts that pass a reputation check. 5,555 supply, gtd + fcfs, mint date not set.
i went through the whole gitbook. one part is missing ↓
most free mints sell you art. conso bots sells you a job: a "mobile node" that mines ZAPs on sui.
the idea: your x, steam and github activity becomes a score, and the bot multiplies the score.
▹ @conso_xyz BOTS + ZAPS UNDER THE HOOD
1. ELIGIBILITY: paste your x handle into the conso eligibility checker. 5,555 bots, 2 lanes (gtd, then fcfs), free, countdown still shows no date
2. MOBILE NODE: built on sui, data stored on walrus, encrypted with seal. the bot is pitched as verifying activity and flagging bad actors in 1 network
3. MINER APP: holders mine ZAPs in the conso miner app. community posts say +25% per bot, max 10 bots per wallet, transfers only after a lockup. none of this is in the docs yet
4. ZAPS: scored from 12 platform apis (youtube, x, twitch, steam, github, discord, sui apps...), 5 zones (social, gaming, creative, on-chain, developer), a cap per platform, badges level 1-5 add multipliers
5. TOKEN: every doc page, 0 lines on how ZAPs convert to anything. no tokenomics page, no team page, no funding page. ZAPs today = rank on a zapboard + campaign odds
6. ROADMAP: polar bear membership nft is dated q1 2026 in the faq and q3 2026 in the roadmap. the first collectible to ship is a robot. q4 2026 smart campaigns, q1 2027 developer api, q2 2027 portable passport
x handle → reputation check → free bot → miner app → ZAPs → ???
alone each piece is mid: a free nft, a points app, a reputation score. together they are a points farm where the bot is the multiplier and the last arrow is still blank.
bookmark this before the countdown starts. the free mint costs $0 and 1 thing: your social graph.
mint it as a free option, or skip until ZAPs have a price?
CONSO RAISED $10M+ FROM IDG CAPITAL TO TURN TELEGRAM INTO A WEB3 TERMINAL.
for years crypto talked in Telegram and traded somewhere else.
-> now Conso puts both in one client, built on the Telegram API. 5 tools, zero tab switching:
▹ @CONSO_XYZ TELEGRAM TOOLS, ONE BY ONE
CA Signals: every contract address dropped across your groups lands in 1 feed.
Token Price Card: paste a ticker or CA and the card keeps updating inside the chat.
CoinBox: send and claim token red packets without leaving the group.
Mini Apps Parallel: several Telegram Mini Apps open at the same time.
Conso Points: earned by using the app, planned for governance, tests and voting.
The round: $10M+, led by IDG Capital, reported April 23, 2026.
What it shows: the alpha was always in the chats. the tools just lived in other tabs.
Caveat: Conso Points are points, not a token. treat them as usage credit, not a price.
A Telegram group is no longer just a chat. With @conso_xyz it becomes the screener ↓
CA Signals or Price Cards: which one would you actually open first?
ON FRIDAY TRUMP'S LAWYERS TOLD A JUDGE HE HAD GIVEN THE GOLF COURSE "AT MOST" PRELIMINARY THOUGHT. ON SUNDAY HE POSTED THE ARCHITECT, THE START DATE AND THE RYDER CUP.
The course is East Potomac Golf Links, in a national park in Washington. It opened in 1921. Warren Harding was one of its first golfers. It is the busiest public course in the city, the one you can play without being rich.
In July 1941, three Black golfers played it escorted by six US Marshals while white crowds jeered. That is the kind of place it is.
Now the president wants to rebuild it.
For weeks the Justice Department argued in court that there was no plan. Just ideas. Nothing final, nothing a judge could stop. The National Park Service told the court it knew of no formal plan beyond social media posts.
Meanwhile hundreds of trees came down.
Judge Ana Reyes was furious. "I trusted you all not to do precisely what you have done," she told government lawyers. She said the episode "cost the government all of its credibility." She froze tree cutting through October 26 and ordered three business days' notice before any "irreparable modification."
On Friday the administration filed that Trump had given the idea "at most" "preliminary thought." It also asked for Reyes to be removed, citing her "histrionics."
On Sunday Trump went on Truth Social. A plan by golf architect Tom Fazio. Work starts November 15. It takes about 15 months. A "World Class Championship Golf Course" fit for the U.S. Open, the PGA Championship, the Ryder Cup and the Presidents Cup.
The old course, he wrote, is "old, broken, dilapidated, and of no further use or effect."
Within hours the judge ordered the government to say whether it still claims there is no final plan. She called the acting head of the Park Service and Interior's chief of staff to testify under oath on Monday.
The story is not really about golf. It is about what happens when a post on social media contradicts a filing in federal court. One of them has to be wrong.
The lesson: in court, your own posts are evidence. Refusal to call a plan "hypothetical" while cutting the trees. Refusal to trust "preliminary" when the start date is public. Refusal to forget who the public course was built for.
The hearing is Monday. Most people who see the headline will never read the filing.
brands on X are done paying for raw views. Tutti pays creators by effective exposure, and v2 just went live
#Tutti is a marketplace between X creators and brands: you pick a campaign, post, submit the link, get paid on tracked exposure + engagement. their site claims 23,763 creators, 139 campaigns, 2,650 posts, 94.0M impressions
most creator deals still run on DMs, screenshots and "trust me bro" analytics. Tutti puts the brief, the post and the payout math in one place
the idea: you shouldn't need a manager to get paid for a post
v2 ships 5 pieces. here's what i'm testing over the next few days:
1. HOME FEED: can i find a campaign that fits my niche in under 1 minute, or is it a wall of briefs
2. CAMPAIGN PAGES: is the payout logic clear before i write a word. "effective exposure" needs a definition, not a vibe
3. STUDIO: draft → submit → approve. how long the review takes and what gets rejected
4. CAMPAIGN GROUPS: a real room of creators boosting each other, or 300 people posting "gm"
5. TUTTI CUE: does it answer a real question about a brief or just repeat the FAQ
6. THE POOL: 70% to originals, 30% to boosts, $100 cap per person. alone a post is a lottery ticket. together a group that boosts each other is a distribution engine
OPENAI DROPPED 722 MATH PAPERS IN ONE DAY. 372 UNSOLVED PROBLEMS. ABOUT THREE HOURS OF COMPUTE EACH. BRIAN GREENE ASKED THE QUESTION NOBODY WANTED TO: WHAT ARE MATHEMATICIANS FOR NOW?
The video is called "Will AI Destroy Mathematics?" It went up on the World Science Festival channel on October 15. It is free on YouTube.
Here is what he was reacting to.
On October 6, OpenAI pushed 722 manuscripts into one public repository. They group into 372 results on problems humans had not solved. The model was handed roughly 4,000 problems and given about three hours of compute per result. It is an internal model. Nobody outside can use it.
The list of claims reads like the index of a graduate textbook. The Unique Games Conjecture. Kakeya. Mahler. Birch and Swinnerton-Dyer. Kaplansky's zero-divisor conjecture, disproved. Not the Riemann hypothesis itself, but a bound: no zeros with real part above 7/8.
Then read the fine print. 235 of the 372 results link to machine-checked Lean proofs. The rest do not. The catalogue marks review status as "unchecked." OpenAI's own README warns that some of the unformalized results could have issues.
The people who do this for a living were not cheering. Tristan Buckmaster of NYU, who worked on Navier-Stokes, told The New York Times: "I don't think they've done their sort of due diligence at all." Two weeks earlier, sitting with Greene, he had described AI proofs as the worst mathematics he had ever seen, while confirming they were correct.
In September, more than two dozen Fields Medalists signed an open letter titled "The Severe Misalignment of AI With Mathematics." Their fear is not wrong answers. It is a field where problems get closed faster than anyone can understand them.
Greene's answer is uncomfortable and calm. The mathematician stops being the solver. The job becomes curator, critic and conductor. Choosing which questions matter. Checking what the machine produced. Deciding what any of it means.
The video is not really about whether AI can do math. It plainly can. It is about what a proof is for if nobody reads it.
The lesson: an answer is not understanding. Refusal to call a result solved before a human has checked it. Refusal to let the machine choose the questions. Refusal to confuse speed with insight.
The video is free on YouTube. Most people sharing "AI solved math" headlines will never watch it.
Jev Engineering is what happens when you have 300 employees to review - without handing all 300 the company handbook again.
Imagine 300 people working from the same brief.
They come back with 300 reports.
You don’t reread the entire brief from page one before reviewing every report.
You keep the rules in front of you and focus on what changed.
That’s basically what this run does.
First pass: 29 questions left.
Second pass: 4.
Third pass: cleared.
The agents can run massively in parallel.
The reviewer doesn’t need to repeat the same work 300 times.
That distinction becomes increasingly important as the swarm gets larger.
That’s where Jev Engineering starts to matter.
JUSTIN SUN SOLD 80 TO 90 PERCENT OF HIS ETHEREUM BETWEEN $3,600 AND $4,000. ETHEREUM IS AT $2,400 TODAY. THE MONEY WENT INTO NVIDIA.
He said it himself, in a long interview this week.
Justin Sun founded Tron. Before this trade, Ethereum was his largest crypto holding. As late as February, Arkham tracked about $300 million of staked ether in his wallets.
He watched ETH run toward $4,800, fall back, then climb toward $4,000 again. To him it looked like a double top. He also did not trust who was buying. The second rally, he said, was driven by ETF demand. Strong, but fragile.
So he cut 80 to 90 percent of what he calls his aggressive ETH. Most of it went between $3,600 and $4,000. He kept about 20 percent as a base. He says he has not bought any of it back.
Ethereum has not closed a month above $3,600 since October 2025. At the end of June it closed near $1,570. On Saturday it closed near $2,403. That is 33 to 40 percent below where he sold.
Every $100 million he sold at $3,800 would be worth about $63 million in ETH today.
Then the part nobody expects from a crypto founder. The money went into US stocks. Nvidia is his main position. He holds a large piece of the Nasdaq-100. No Chinese A-shares. No shorts.
And he is not even bullish on what he bought. He calls himself slightly bearish on the Nasdaq-100 over the medium term: too much money crowded into AI, borrowing costs rising.
This week showed why. The Nasdaq fell 4.5 percent. CoreWeave, which rents out Nvidia chips, sank on fears about AI debt. Nvidia closed Friday at $214, about 12 percent below its 52-week high.
His Bitcoin he did not touch. He moved it into cold wallets that had never been used, as a precaution against future AI and quantum attacks on cryptography.
What he did not give: amounts, dates, wallets. The trade is his own account. Nobody has verified it on-chain.
The story is not really about selling Ethereum. It is about giving every dollar a job. Bitcoin is the base. ETH is the aggressive bet. Stocks are where the cash goes when the crypto chart stops making sense.
The lesson: the founder of a blockchain trusted a chart pattern over his own industry's story. Refusal to marry a coin. Refusal to buy back just because it got cheaper. Refusal to pretend you are bullish on everything you own.
The interview is public. Most people who bought ETH at $3,800 will never hear it.
Tayo is a cartoon about a little blue bus learning to be a good friend. on YouTube Shorts he now turns into a rainbow robot and fights
"Rainbow Tayo Robot Bus Fighting #shorts", Indonesian title "Robot Bus Tayo Pelangi Berkelahi", channel BANG QIE, uploaded october 17 2026. it is not the official Tayo channel, and the page alone does not tell me if it is AI-made or hand-animated
most will scroll past it as kids' junk. i read it as the first robot a lot of toddlers will ever meet
the idea: for millions of kids the first lesson about robots is not "robots help". it is "robots fight", taught by an autoplay feed
i went through the show's history and the reporting on kids' Shorts under the purple lamp in praga
what runs under the hood:
1. THE ORIGINAL: Tayo the Little Bus, by Iconix Entertainment, since 2010 · 7 seasons · 182 episodes of 10–11 min · the official YouTube channel runs in 12 languages, Indonesian included
2. THE REAL BUSES: in 2014 Seoul painted 4 city buses as Tayo, then expanded to 100. crowds topped 40,000 in one day and the run was extended to May 5
3. THE SHORT: a known kids' character + "robot" + "fighting" + #shorts in the title. no story, no lesson, built for a feed that rewards watch time
4. THE FEED: a New York Times investigation found that more than 40% of the Shorts recommended after CoComelon, Bluey or Ms Rachel appeared to contain AI-made visuals. Kapwing estimated in november 2025 that ~21% of YouTube's feed is low-quality AI video
5. THE SCALE: one AI kids' channel posted 10,000+ videos since august 2025, ~50 a day. Sesame Street has posted ~3,900 in 20 years on the platform
6. THE RULES: YouTube only requires AI labels for content that looks realistic, so cartoons are exempt. after reporters flagged examples, it cut 5 channels from its Partner Program in one case and acted on at least 7 in another. alone each video is a 30-second clip. together they are a curriculum nobody wrote
KNOWN CHARACTER → "ROBOT" → "FIGHT" → #SHORTS → AUTOPLAY → TODDLER → NEXT CLIP
my take: i cannot tell you this exact Short is AI, and it does not change much. the format is the point. a show built on a bus that learns to share becomes a robot brawl because brawls hold a 3-year-old's eyes longer. and the same kids will grow up next to real robots on real sidewalks
the novelty is not a fighting bus. the novelty is that "robot = fighter" is being taught to kids who cannot read yet, by an algorithm, not by a writer
bookmark this before you hand a kid autoplay
edge is open until YouTube labels cartoons the same way it labels deepfakes
BITCOIN HAS CLOSED ON A DIFFERENT SIDE OF $82,000 FIVE DAYS IN A ROW. BELOW, ABOVE, BELOW, ABOVE, BELOW. THIS WEEKEND PICKS THE SIDE.
Monday, October 12: $81,850. Tuesday: $83,115. Wednesday: $81,605. Thursday: $82,242. Friday: $81,607.
Saturday morning it trades near $81,500. It needs about half a percent to get back over the line.
Half a percent sounds like nothing. It is the whole question.
Here is how it got here. On September 16 the Fed raised rates for the first time in three years. Bitcoin sat near $76,000. Five days later it printed a 6.9 percent day and closed at $86,600. On October 2 it touched $87,053, the high of the month.
Then the slide. September inflation came in at 3.7 percent year over year, above the 3.6 percent forecast. On October 15 bitcoin fell to about $80,000 and, on some feeds, briefly below it. It bounced the same day.
The market is not panicking. It is tired.
In the last 24 hours $315 million in leveraged positions got wiped out, two thirds of it longs. Funding is almost flat. Fear and Greed reads 40. Google searches for bitcoin sit at multi-year lows. Volume fell 22 percent in a day.
And weekends are thin. A Kaiko study found weekends carry only about 16 percent of bitcoin's trading volume. Thin order books move further on less money. That is why a weekend close gets read as a signal.
The map is simple. Hold above $82,000 and the next walls are $83,000 and $84,200, last week's high. Lose $80,000 and analysts point to $75,000. One prediction market puts the odds of bitcoin above $82,000 next Friday at 47 percent. A coin flip.
The last time bitcoin spent a weekend near $81,000 was September 19 and 20. On Monday it ran 6.9 percent. That is a fact, not a forecast.
The story is not really about $82,000. It is about both sides running out of conviction. Five alternating closes mean neither buyers nor sellers have enough to finish the job.
The lesson: a level is only real when it holds. Refusal to trade the first wick through it. Refusal to read one weekend as the trend. Refusal to forget the next date that matters: the Fed meets October 27 and 28.
The daily closes are free on any exchange. Most people trading the headline will never look at them.
tried Tutti v2 today. first impression: it finally feels like one place instead of five tabs
home feed → campaign page → Studio → campaign group → #Tutti Cue. the whole loop from "found a campaign" to "submitted a post" happens without leaving the app
Studio is the part i'll use most. writing and submitting a draft right next to the campaign brief just makes sense
going to use it for a few more days and come back with a proper take
$152 MILLION LEFT BITCOIN AND ETHEREUM ETFS IN ONE DAY. 93% OF IT CAME OUT OF ONE FIRM: BLACKROCK.
October 16, 2026. US spot Bitcoin ETFs lost $82.39 million. Ethereum ETFs lost $69.68 million.
Look at who actually sold.
BlackRock's IBIT: minus $71.78 million. Fidelity's FBTC: minus $10.61 million. The other 10 Bitcoin funds: zero. Not a dollar in, not a dollar out.
On the Ethereum side it was even simpler. Every dollar of the $69.68 million left through one fund, BlackRock's ETHA.
Two tickers. One issuer. $141 million out of $152 million.
It was the third day in a row of Ethereum outflows. About $129 million left on Wednesday, about $60 million on Thursday, and $69.68 million on Friday. Bitcoin funds lost $261 million on Wednesday, took back $5 million on Thursday, then gave it up again.
Zoom out and the month looks worse. Bitcoin ETFs have lost about $535 million in October so far. In September they took in about $2.6 billion.
Prices followed. Bitcoin sits near $81,500, about 35 percent below its all-time high of $126,080. Earlier in the week it briefly broke below $80,000. Ethereum is near $2,426, about 51 percent below its high of $4,946.
The trigger people point to is inflation. September CPI came in at 3.7 percent year over year, 0.6 percent in a single month. Hot inflation means rates stay high for longer. High rates are bad for anything that pays no yield.
Now the part the headline does not tell you.
Bitcoin ETFs still hold $104.29 billion. Friday's outflow was 0.08 percent of that. Since launch in January 2024 they have taken in $56.88 billion net. One bad day is a rounding error on that number.
Ethereum is different. $69.68 million is almost half a percent of the $14.95 billion its ETFs hold. Same dollar headline. Six times the weight.
Even the number itself is not settled. Another tally put Friday's Bitcoin outflow at just $10.6 million, a gap that comes from data sources and settlement timing.
The story is not really about $152 million. It is about where the money sits. When most of the flow runs through one issuer, one desk's rebalancing looks like a market-wide exit.
The lesson: read the fund-by-fund table, not the headline. Refusal to panic at a number without its denominator. Refusal to treat one issuer as the whole market. Refusal to ignore which asset is actually bleeding.
The full table is free on SoSoValue every morning. Most people trading the headline will never open it.
the man who wrote git just pushed a branch called noref-filemap-read-with-llm
Linus Torvalds, 10 oct: 8 patches to the linux page cache, written with Claude Code "under my direction". 8 threads reading one cached file went from ~10M to 30–33M reads/s on his laptop
the timeline:
2024 · Linus calls the AI industry "90% marketing and 10% reality"
2024 · Matthew Wilcox flags folio refcount contention from a customer workload
aug 2026 · AI helps Linus fix an Intel Xe driver bug
10 oct · noref-filemap-read-with-llm, 8 patches on 7.3-rc6, Claude Code credited in the commit
11–12 oct · Phoronix, Linuxiac, It's FOSS pick it up
Prague, OSS EU · he says he "actually really" likes using AI. and that AI slop is now a real burden on maintainers
what's actually in the commit:
1. PROBLEM: many threads, one cached file → every 16-byte read takes and drops a folio ref → 8 threads fighting over one counter
2. FIX: RCU read path → copy without taking a ref → memory leaving the cache is held back from reuse for a short window
3. NUMBERS: 8 threads ~10M → 30–33M reads/s (×3) · 4 threads on own cores 9–12M → 25–26M · 1 thread ~8M → ~9M
4. RIG: i7-8565U · 4 cores / 8 threads · ext4 · some mitigations off · one laptop, one workload
5. SPLIT: Claude Code did the code, the test programs, the review behind the known-issues list and the first draft of the message · Linus did the direction and ran the measurements himself
6. STATUS: not merged · extra overhead when a read hits a missing page · allocation, compat and regressions listed as open · the 7.4 merge window decides
alone the ×3 is a microbenchmark on a laptop. together with the commit message it's a template: human picks the problem, agent drafts, human measures and signs
the novelty is not that an AI wrote kernel code. the novelty is the branch name. he put "with-llm" right in it
bookmark this before every maintainer copies the same split and calls it policy
edge is open until everyone else stops arguing about whether agents can touch C