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  1. Uncapped with Jack Altman
  2. Uncapped #48 | Tarek Mansour from Kalshi
Uncapped #48 | Tarek Mansour from Kalshi

Uncapped #48 | Tarek Mansour from Kalshi

Uncapped with Jack Altman · Apr 29, 2026

Kalshi CEO Tarek Mansour on suing his regulator, defining a new financial market, and the power of prediction markets for hedging and discovery.

Regulated Startups Face a Psychological "Desert" of Non-Linear Progress

Founders in regulated spaces shouldn't expect linear progress. The journey is a psychologically taxing "desert" with no status updates, culminating in sudden "big bang moments" of approval or rejection. This uncertainty, where years of work might yield nothing, is the primary challenge, not the work itself.

Uncapped #48 | Tarek Mansour from Kalshi thumbnail

Uncapped #48 | Tarek Mansour from Kalshi

Uncapped with Jack Altman·10 hours ago

Hire for "Slope" Over "Intercept" in Chaotic Startup Cultures

In highly dynamic and unstructured startup environments, hiring for high potential ("slope") is more effective than hiring for deep experience ("intercept"). Experienced hires from structured companies often perceive the environment as chaotic and fail to adapt, whereas high-slope individuals see it as normal and thrive.

Uncapped #48 | Tarek Mansour from Kalshi thumbnail

Uncapped #48 | Tarek Mansour from Kalshi

Uncapped with Jack Altman·10 hours ago

Insider Trading Must Be Banned Because Perceived Unfairness Destroys Market Liquidity

The practical reason to ban insider trading is to preserve market health. Beyond moral fairness, if participants believe a market is rigged, those without an informational edge will stop trading. This exodus destroys liquidity and ultimately causes the market to fail, making fairness a requirement for survival.

Uncapped #48 | Tarek Mansour from Kalshi thumbnail

Uncapped #48 | Tarek Mansour from Kalshi

Uncapped with Jack Altman·10 hours ago

The Entrepreneurial Shame of Layoffs Can Feel More Painful Than Experiencing War

The psychological weight of founder responsibility can be immense. Kalshi's CEO, who grew up during a war in Lebanon, describes the period of layoffs and regulatory failure as more painful. This was due to the intense, personal feeling of shame and of letting down a team that had placed their trust in him.

Uncapped #48 | Tarek Mansour from Kalshi thumbnail

Uncapped #48 | Tarek Mansour from Kalshi

Uncapped with Jack Altman·10 hours ago

Prediction Markets Need a "Catalyst Event" to Solve the Chicken-and-Egg Problem

To launch a two-sided marketplace, you need a powerful catalyst to attract both supply and demand at the same time. For Kalshi's prediction markets, this was major elections. Such an event must be a strong enough driving force to get a critical mass of users to show up simultaneously, creating a self-sustaining chemical reaction.

Uncapped #48 | Tarek Mansour from Kalshi thumbnail

Uncapped #48 | Tarek Mansour from Kalshi

Uncapped with Jack Altman·10 hours ago

Kalshi's Lean Team Outperforms with a Relentless Founder Pace and Flat Org Chart

To achieve massive output with a small team (~127 people), Kalshi relies on a few core principles. The founders set a relentless work pace, maintain a flat organization with many direct reports, and dynamically assign talent to the company's biggest problems rather than adhering to a rigid org chart.

Uncapped #48 | Tarek Mansour from Kalshi thumbnail

Uncapped #48 | Tarek Mansour from Kalshi

Uncapped with Jack Altman·10 hours ago

Kalshi's Lawsuit Shows Startups Must Sometimes Sue Their Own Regulator To Survive

For a heavily regulated startup, when an intransigent regulator blocks your core mission, the only path forward may be to embrace an extreme anti-pattern: suing them. Kalshi, a 20-person startup, sued the CFTC because it was their last shot at survival, despite warnings it would lead to a "death by a thousand paper cuts."

Uncapped #48 | Tarek Mansour from Kalshi thumbnail

Uncapped #48 | Tarek Mansour from Kalshi

Uncapped with Jack Altman·10 hours ago

The Legal Line Between Finance and Gambling Is an Open Marketplace Trading on Natural Events

Kalshi's lawsuit clarified the distinction between a financial market and gambling. It hinges on two points: 1) having an open, peer-to-peer market structure instead of a "house" that profits from customer losses, and 2) trading on naturally occurring events (like elections or weather) rather than artificially created risks (like a dice roll).

Uncapped #48 | Tarek Mansour from Kalshi thumbnail

Uncapped #48 | Tarek Mansour from Kalshi

Uncapped with Jack Altman·10 hours ago

Kalshi Was Born From Wall Street's Mistake of Trading Market Reactions, Not Events

Kalshi's core insight came from observing Wall Street's flawed approach to event-based trading. Traders incorrectly used proxies like shorting the S&P 500 to bet on Trump's 2016 election. They were trading the market's unpredictable *reaction* to an event, rather than the event itself, creating a massive opportunity for a direct event marketplace.

Uncapped #48 | Tarek Mansour from Kalshi thumbnail

Uncapped #48 | Tarek Mansour from Kalshi

Uncapped with Jack Altman·10 hours ago