steve

growth marketing at kalshi

[steve @Chefsteve]

You just won a 2-week, all-expenses-paid vacation to New York. But there’s a catch: you have to stay within one region the whole time. What are you picking?

[steve @Chefsteve]

Kalshi walked so Vitalik could rug

[IcoBeast.eth🦇🔊 @icobeast]

Kalshi: Launches first ever American Perps

ETH: literally fking dies

[steve @Chefsteve]

There is an accountant somewhere in Florida, fueled by a Cuban sandwich and 3 michelobs, playing better long matches than Jannik Sinner

[Swish 🍒 Tennis @Zwxsh]

🇮🇹 Jannik Sinner's last nine 5th sets played:

Tsitsipas - AO23 ❌
Altmaier - RG23 ❌
Zverev - USO23 ❌
Medvedev - AO24 ✅
Alcaraz - RG24 ❌
Medvedev - WB24 ❌
Alcaraz - RG25 ❌
Djokovic - AO26 ❌
Cerundolo - RG26 ❌

This is his BIGGEST weakness. But what's the solution?

[steve @Chefsteve]

New York if the Knicks win

[Visegrád 24 @visegrad24]

Paris is on fire tonight

🇫🇷

[steve @Chefsteve]

This is really cool - it captures what Kalshi is genuinely aiming to do. When you look at a financial instrument (even a stock, not even an option or a basket) you are up against so much weirdness…. Decay, volatility, and fundamentals are hard to price for most investors. A company can beat earnings handsomely and go down 10% for a million reasons that are abstracted away by a single price.

When you get a binary market that can unbundle the complexity of traditional instruments, people end up structuring risk more elegantly (making markets work far more efficiently in the long run).

[Lauris @lzminsky]

Happy to ship the first version of Hedgebook, powered by @Kalshi : an app showing how every SPX companies can hedge their core business risks using Kalshi event contract markets.

Event contracts and perpetual contracts consolidated into a single, onshore, regulated exchange is how we get to perfect Arrow-Debreu markets.

Thanks to @j0hnwang and @0x_ultra for inviting me to build this, and to Nicole from @KalshiResearch for inviting me to present the early frameworks at the Kalshi Research Conference in March.

[steve @Chefsteve]

@icobeast Post is written by left-curve individual, ignore

[steve @Chefsteve]

@rasmr_eth this is why we do it

[steve @Chefsteve]

live from kalshi HQ

[Kalshi @Kalshi]

Perpetual futures are finally coming to America.

Trade on future asset prices with leverage in a regulated, institutional-grade environment.

Only on Kalshi.

[steve @Chefsteve]

FIRST AMERICAN PERP

LFG

[Tarek Mansour @mansourtarek_]

The First American Perpetual Future.

Kalshi.

[steve @Chefsteve]

I've been playing tennis my whole life and literally don't know who half these people are

[José Morgado @josemorgado]

Who is reaching the #RolandGarros final?

JM Cerundolo
Landaluce
Rinderknech
Berrettini
Comesana
Darderi
Tiafoe
Faria
Arnaldi
Tsitsipas
Shelton
Collignon
Auger-Aliassime
Burruchaga
Nakashima
Van Assche
Kouamé
Tabilo
Cobolli
Tien
F Cerundolo
Svajda

[steve @Chefsteve]

USTA working hard to make pickleball the fastest growing sport in America

[Jason Deutchman @JDeutch]

Why are @usopen tickets QUADRUPLE the price of last year?

@Ticketmaster

The same seats that were $600 last year are $2400 this year???? That's insane.

And this is supposed to be @AmericanExpress presale???? WTF

@usta

[steve @Chefsteve]

silly AI tools are still inferior to a god king who reviews 95% of your company’s PRs

[Kevin @itskevinjin]

What is even the benefit of code review in 2026?

As AI tools get better and better, I keep thinking about this. There is so much lost engineering velocity due to context switching if you have to build a feature, wait for another engineer to “review” it (most of the time they just skim and pattern match anyways) and then merge it in and wait for it to deploy (even worse if you have to address a round of comments first).

With Claude ultraplan, codex review, or greptile, AI often does it so much better and faster (without the hour long turnaround time). With a high context window it’s usually way better at catching nuanced edge cases vs a human code reviewer that’s just doing it quickly anyways so they can switch back to their own work. It can literally be the difference between merging 10-20 PRs a day instead of just 4-6.

I still do see some value of it in larger companies where you want to be a lot more deliberate with changes at the cost of speed since you’re serving for millions of users, or if you’re onboarding a new hire to your eng team, but requiring manual code review for your entire engineering team at early stage startups feels extremely bearish at this point

[steve @Chefsteve]

AP Swatch Car. Downfall of Jony Ive will be studied.

[Sawyer Merritt @SawyerMerritt]

Ferrari has just officially unveiled its first ever all-electric car, called the Ferrari Luce.

• Starting price: $640,000
• Interior co-designed with Apple's former head of design, Jony Ive
• Range: 280 miles (expected EPA)
• Peak charging speed: 350kW
• 122 kWh battery
• 1,050 horsepower
• 0-60mph: 2.4s
• 800v
• Four-door four-seater
• Four electric motors
• OLED screens
• Weight: 4,982 lbs
• Front motors spin to 30,000 rpm, rears hit 25,500 rpm
• Car uses an accelerometer to capture real vibrations from the electric motors & rear chassis. An algorithm filters out unpleasant frequencies and amplifies only the more “musical” sounds. This can be heard inside and outside the car.
• Paddle shifter on steering wheel changes how aggressively torque is delivered, with five different levels
• The trunk has 21.1 cubic feet of space, the largest luggage capacity the company has ever offered
• 197.6 inches long, about as long as a Tesla Model S

U.S. deliveries start in Q2 2027. More photos in the thread below:

[steve @Chefsteve]

Darth Vader visits Imperial Trading Outpost

[NVIDIA @nvidia]

It's not a trip to Taipei without a night market stop. 🍧📸🤳

[steve @Chefsteve]

Thank you, Donald!

[steve @Chefsteve]

Something new

[Kalshi @Kalshi]

Something new

04.27.2026

[steve @Chefsteve]

@helloitsaustin @AnthropicAI Yeah, we do manual CPC with our own autobidding system across.

What I was referring to was Claude getting empowered to develop campaigns, and then it overlooks my rules for adding negatives

[steve @Chefsteve]

@TurnerNovak No problem