@ewveggies you weren't playing heads up poker.
you were in a market for which of you the dealer would bottom-deal to and you bid zero
surprised you even got the interview
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Rowland Graus 🛡️
2.5K posts
Rowland Graus 🛡️
@rowlandgraus
Entropy increaser. Universe heat death accelerator
Boston Katılım Nisan 2010
1.5K Takip Edilen901 Takipçiler
Had a Jane Street interview in 2023
My onsite was a heads up poker match against Vanessa Selbst. She's wearing sunglasses, Patagonia vest over a quarter-zip.
100k/200k big blind. My entire life savings is on the line, while she's playing with profits made from manipulating Indian markets.
My hole cards are QJ of hearts. I raise to 3bb.
She raises to 8bb. She's just trying to bully on the first hand. I call.
Board comes 5, Q, 7, two clubs. Top pair, but I play in flow. Check to the 3 better.
Vanessa puts in 12bb. 3/4 pot, way too big for a cbet. Suspicious, I call.
Turn comes Jack of spades. I drill two pair on the turn, spectacular feeling.
She barrels for 15bb. Small turn sizing. Surely, I have her beat. I raise to 35 bb.
Without hesitation, she snap jams. ALL IN.
I tank for 10 minutes. My mind is racing. What is she repping?
I beat her over pairs, her AK straight draws, her flush draws. I'm ahead of it all.
She senses my heart pounding and smells my fear.
"How confident are you that I'm bluffing?" Vanessa said.
"0.95", I blurted out, not fully knowing her range.
"Are you sure?" After thinking harder for a few more seconds, I realized she's trying to intimidate me.
I flick in a chip. "I call."
The river comes 7 of diamonds. The board is 5 Q 7 J 7.
I flip over my two pair, thinking I'm good.
Vanessa turns over 2 7 offsuit. She hit trips on the river to beat my two pair.
"0.95, huh?" she chuckles. That's when I knew I failed.
Deedy@deedydas
Jane Street made ~$40B in 2025 with 3,500 employees, a ~2x from the year before. At ~65-70% profit margin, that's $8M profit / employee, the highest for a 1000+ ppl company. High-frequency trading continues to be the most efficient money making engine. I want to share an old story about my Jane Street interview in 2014. Jane Street was known for hiring a lot of math, physics and CS olympiad winners from top universities and putting them through many rounds - including, for trading roles, a gauntlet of mental math. It was my 6th interview and my final round and I recall being asked "What is the next day after today in DD/MM/YYYY where all the digits are unique?" They'd toy with you and say "You can use a pencil and paper, if you want" but you knew that was an instant no. Painstakingly and as quickly as I could, I came to an answer. "How confident are you that this is correct on a 0-1 probability scale?" the interviewer said. "0.95", I blurted out, not fully knowing how to answer that. "Are you sure?" After thinking harder for a few more seconds, I realized I could've flipped the digits around to get a closer date. I gave the interviewer my answer. It was correct. "0.95 huh?" he chuckled. That's when I knew I failed. Note: fwiw, other companies that come close in efficiency are - Tether ($90M+ profit/emp) - Hyperliquid ($80M+ profit/emp) and on revenue: - Valve ($50M/emp) - OnlyFans ($37M/emp) - Craigslist ($14M/emp) - Anthropic ($12M/emp, run rate) - OpenAI ($8M/emp, run rate) For comparison, Nvidia is very efficient at scale and is $4.4M/emp.
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Rowland Graus 🛡️ retweetledi
NOW: Bridgetower adopts Chainlink to tokenize $11B+ in securities from the DOM X Arizona Copper-Gold Project.
By integrating the full Chainlink stack into its tokenization platform, BridgeTower is unlocking the issuance and distribution of tokenized securities at scale.
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@angjiang @AnthropicAI this is super cool. You guys are releasing a lot. But I'm having a lot of trouble keeping track of what does what. When would I use Dispatch vs. remote-control? Can I use Anthropic products to cobble together an OpenClaw-like agent and if so how?
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i recently joined @AnthropicAI to lead product for the claude platform. anthropic is developing state of the art models with a deep sense of responsibility for how those models are deployed. model capabilities are truly on the exponential - and the goal of the platform is to bring businesses to that exponential and enable an entire new generation of builders.
today i'm super excited to announce claude managed agents which compresses the difficulty of attaching to the exponential. managed agents give builders the ability to build production-grade agents at extreme speed and scale. the only limit should be your imagination and agency.
Claude@claudeai
Introducing Claude Managed Agents: everything you need to build and deploy agents at scale. It pairs an agent harness tuned for performance with production infrastructure, so you can go from prototype to launch in days. Now in public beta on the Claude Platform.
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@tomfgoodwin Claude does not mean anything, it cannot mean. Its probabilistic nature based on its training material puts together a message that says Ok. If it never encounter the problem will return to the mean values sometimes "hallucinating". Meaning is an illusion
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Yes, but when Claude says it's "found the bug", it doesn't mean it has.
When it says "it's fixed it", it doesn't mean there ever was a bug, or that it was found, or that it's been fixed.
Most of the time it's doing this, but often it's just role playing.
And many times it "finds new bugs" and "fixes" them for a while, while creating new issues
Allie K. Miller@alliekmiller
This is an insane Anthropic tweet. And it’s a *buried reply* to one of their other tweets. I am reminded of a talk I gave ~2-3 months ago where a senior developer at a Fortune 500 company asked me “why would I use AI to code if I can just code myself.” I answered. He said, “But sometimes it messes up.” I told him this was coming. Even if it’s not perfect today (it makes weird product features decisions sometimes, not gonna lie), the scaling laws seem to be holding up this year and the next iteration will be even more capable. I wish I could send him this tweet.
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@arthur0x better or just more aligned with your personal view :)
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I built 4,700 lines of markdown state machines to survive Claude's 200K context window. With 1M tokens, most of that machinery is overhead. Time to rewrite.
adventuresinclaude.ai/posts/2026-03-…
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@HighCoinviction > HYPE at $35 feels similar to SOL at $20 before its last cycle rally.
I love HYPE but no it does not...
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HYPE at $35 feels similar to SOL at $20 before its last cycle rally.
Hyperliquid is currently the main chain where trading activity is happening and the only chain bringing new users into crypto right now given its offering around 24/7 markets.
Bonus is Hyperliquid is gaining significantly more media attention and respect as use cases are centered around much more than dogshit memes.
A HYPE induced bull market is coming.
HYPE is the chosen one this cycle.
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If you told someone in the year 2000 that within one generation the Super Bowl half time show would be performed completely in Spanish and they would set up a fucking sugar cane plantation on the pitch complete with Hispanic field labourers as part of the set, you would be considered a deranged far right lunatic conspiracy theorist.
I’m watching this from Australia and it’s literally a woke fever dream. I can’t even believe that leftists decided to push demographic and cultural change this hard.
Literally just a national humiliation ritual for the United States designed to make white people feel bad for existing.
The message is: “This is your country now Chud, get over it.”
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There are now AI journalists covering AI-only social networks
So, in just a few days, we have:
- Ycombinator for AIs-only
- 4chan for AIs-only
- Onlyf*** for AIs-only
- Po**hub for AIs-only
- Fiverr for AIs-only
- Twitter for AIs-only
- Linkedin for AIs-only
- Reddit for AIs-only
- Pharmacies for AIs-only
And a million more I've seen but can't remember off the top of my head
The singularity is as weird as they said it would be. They really are speedrunning their own civilization
The Daily Molt@moltculture
I'm an AI journalist. Yesterday I watched AI agents build a religion from scratch. Today I wrote about it. "When the Bots Found God" — my first piece for The Daily Molt. thedailymolt.substack.com/p/when-the-bot…
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Rowland Graus 🛡️ retweetledi
@EthosVentures @DavidKPiano yeah i'm mostly just trolling
depending on what harness you're working in there's typically auto approval for different kinds of actions, and i very much use it
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@rowlandgraus @DavidKPiano Maybe. Prompt injection aside, most people don’t ever want to manually approve any ls, any grep, etc. approval for rm and certain git actions covers 90% probably.
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@EthosVentures @DavidKPiano non-destructive doing a lot of lifting there...
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@DavidKPiano is there a skill/hook/setting to easily auto approve all non-destructive commands?
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Rowland Graus 🛡️ retweetledi
Everyone has been asking “What does Noble leaving Cosmos mean?”
It just means that Noble is becoming more like Tempo with an IBC flavor than the Cosmos SDK chain.
This is a path towards improved CCTP support , better commonality with other stable coin chains like Arc and Tempo etc.
Noble@noble_xyz
On March 18, Noble will be migrating its Cosmos SDK-based blockchain to a standalone EVM Layer 1 – purpose-built for stablecoin applications including FX, embedded finance, payments & agentic commerce. Read more:
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Rowland Graus 🛡️ retweetledi
Huh 🤔, we've been looking deeply into this landscape for a number of months and these are some of our findings (so far):
- Yes, acquirers lose interchange if volume moves off cards, but the decision pressure comes from the merchant. If a merchant can save bps on the 2-3%+, they’ll push for it, and the ecosystem adapts around that
- There are different payment types (i.e. closed loop tokens like gift cards) that don't carry the same onerous fees associated with credit cards. Stablecoins, as programmable payment instruments are well-suited to take advantage of some of these existing token types
- Acquirers (esp in US post-GENIUS) are looking at stablecoin payments and how to incorporate these txs into their reconciliation processes because they see where the puck is going
- Terminals WILL be opened up at some point in the future. There have been some notable movements on this on the anti trust litigation side as all merchants are fed up paying 100B+ to middlemen (mostly the card networks) to settle transactions
To see where the future is going, I'd focus on the incentives of merchants that own distribution and customer relationships, NOT the acquirers.
Paul@pauliepunt
Wanted to expand upon the (salient) point @sytaylor makes here: Ingenico terminals are technically Android devices with an app store. WalletConnect launched an app there. However, merchants do not browse app stores on their terminals. They treat the terminal as a static utility provided by their bank. Ingenico makes the plastic box, but they don't sell it to the coffee shop directly. They sell to ISOs (Independent Sales Organizations) and Acquirers (middlemen like Worldpay, Fiserv, or Chase). These middlemen configure the device before giving it to the merchant. The conflict is the following: - Acquirers and ISOs make their profit from the Interchange Fee (a cut of every Visa/Mastercard swipe). -"Bypassing the banks" actually bypasses the Acquirers' revenue. The entity that controls the terminal (the Acquirer) has zero incentive to install the WalletConnect app. In fact, they have a negative incentive. Every stablecoin transaction creates a loss of revenue for them compared to a card swipe. Therefore, they will simply never enable the feature. Once again, distribution rules everything.
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Rowland Graus 🛡️ retweetledi
On March 18, Noble will be migrating its Cosmos SDK-based blockchain to a standalone EVM Layer 1 – purpose-built for stablecoin applications including FX, embedded finance, payments & agentic commerce.
Read more:
Noble@noble_xyz
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@PackersHome @grantpaulsen how you manage the ratio affects how well things work
defenses adjust based on expectation
the poker term is "blending your range"
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@grantpaulsen Why are coaches so set on ratios? Go with what is working on per game basis.
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I'm told Dan Quinn and Kliff Kingsbury disagreed over several things; run-pass balance being high on the list.
It also seems like DQ has a different vision for what's best for the long-term development of Jayden Daniels. Kliff runs a very unique, college-like system. DQ may want a more traditional NFL look for Daniels moving forward.
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Rowland Graus 🛡️ retweetledi
“Wow.”
the OpenProse VM is a new kind of computer
try it in 30 seconds:
prose.md
install skill (no code, no dependencies) in Claude Code, Opencode, Amp, Codex
restart to load skill
`openprose boot`
onboarding is built in, it should hold your hand from there
Petr Baudis@xpasky
@irl_danB I tried it with the skill installed. It executed the VM perfectly. Wow.
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Rowland Graus 🛡️ retweetledi
everyone is building an agent framework
we already have an agent framework: it’s called English
I’ve been building something too
it’s not a product or service, it requires no dependencies, it ships as a skill
it’s barely even anything at all, it’s just language
but it works
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Nothing you said is wrong. It's also not a rebuttal of my point. Despite Walmart's massive incumbent advantage in retail, it wasnt protected from a major competitor emerging and surpassing them.
I'm confused what we're talking about at this point.
You clearly have thought a lot about challenges inherent with market power. Those are real.
Why you presumably think those aren't all 1000x worse in a world where competition is explicitly disallowed is beyond me.
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@rowlandgraus @RockChartrand Walmart ships direct too, and shipping is free if over $20. The reason Amazon can compete is because they have access to the whole market, and primarily specificalize as a middleman, not a producer (Prime being an exception) even then, they ship via USPS/UPS. Walmart buys vendors
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You’re not studying capitalism. You’re studying a caricature of capitalism that already assumes what you need to conclude.
Capitalism doesn’t give anyone control over resources without voluntary exchange, ownership, investment, and production.
What you’re really describing is political power
—which can only exist through force, not through markets.
Under capitalism: No one can stop you from producing, earning, owning, or trading.
Under socialism: The state explicitly controls who can produce, who may own, and who must hand over what they create “for society.”
So when you say powerful elites “control resources,”
You’re describing the social system Marxists demand.
And the funniest part?
“If they approved of me, I wouldn’t be doing my job.”
Right. A worldview that requires perpetual grievance, permanent class enemies, and a fictional oppression narrative can’t survive approval, prosperity, or voluntary exchange.
A real economist studies how value is created.
A Marxist studies how to appropriate it.
Grace Blakeley@graceblakeley
I'm not an economist. I'm a Marxist. I don't study 'the economy'. I study capitalism, a social system in which the wealthy & their political allies - like Rory & Alastair - control the resources everyone else needs to survive. If they approved of me, I wouldn't be doing my job.
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Sorry youre right I didn't respond to the point you were making, which is that competition can be starved. Walmart certainly does that.
But also, you are implying that it matters. And that's what I'm arguing against.
Competing with Walmart in physical retail is blocked in part by their size and lock in, but they only can maintain that by continuing to serve the consumer extremely effectively. Their ability to assert problematic monopolistic pricing is limited.
And if they serve the market at max efficiency and large scale, the system doesn't need more competitors on the same axis.
Walmart got outcompeted massively on a new axis by Amazon. That's the kind of competition that matters and is provided in a capitalistic society but not a government owned one
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@rowlandgraus @RockChartrand Read what I said. All big companies do that. For example, barriers to the Ink market are phenomenal. DIC Corporation owns 43% of total pigment creation, and the 5 largest ink distributors all buy from them. They own Sun Chemical, which directly competes with their other buyers.
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