Latest Interviews

Making Trades in Microseconds and Nanoseconds

Dwarkesh Patel, Ron Minsky, Dan Pontecorvo

The event analyzes how trading systems segment operations across ultra-low, mid-range, and long-duration latency horizons to align decision complexity with hardware capabilities. It highlights the critical trade-off between intelligence and speed, demonstrating that sub-100-nanosecond regimes require FPGA-based simple logic while longer intervals support sophisticated models. The discussion concludes by outlining how competitive positioning relies on an ensemble approach that tailors decision-making processes to specific latency buckets.

How do OpenAI’s o1 and o3 models perform complex reasoning?

OpenAI's O1 model utilizes a "chain of thought" reasoning mechanism to solve complex problems by decomposing them into sequential steps, a strategy originally formalized by Google Brain researchers in 2022. This approach enables the system to dynamically identify errors and adjust its logic rather than relying on simple next-token prediction, significantly improving accuracy in tasks requiring multi-step calculation. By explicitly walking through intermediate stages, such as determining total slices and calculating consumption before finding the remainder, the model mirrors human problem-solving to ensure precise outcomes.

YC Partner and Algolia co-founder Nicolas Dessaigne’s advice for founders starting out.

Nicolas Dessaigne

Founders are urged to immediately launch imperfect products rather than waiting for a perfect idea, prioritizing rapid iteration and direct user engagement to validate market assumptions. This approach rejects over-engineering in favor of a "crappy, quick, and dirty" methodology that secures essential feedback through high-touch interactions with early adopters. By accepting short-term technical debt and imperfections, entrepreneurs can quickly pivot to build the correct product and capitalize on the market's forgiving memory.

The best consumer companies incorporate both virality and network effect to grow organically.

Metcalfe's Law posits that a network's value scales with the square of its user base, transforming a single-user platform like WhatsApp from worthless to globally vital. This dynamic illustrates how the mathematical relationship between nodes and utility drives exponential growth for individual participants. Consequently, consumer companies achieve organic expansion by strategically combining distinct mechanisms of virality and network effects.

When you’re pre-product market fit, sales is a job for the founders.

The event asserts that early-stage B2B founders possess the unique capability to sell their products before achieving product-market fit, rendering external sales hires premature and ineffective. Success in this phase requires founders to leverage their vision for high-volume experimentation and establish tight feedback loops between sales efforts and product development. This distinction highlights pre-PMF sales as an exclusively entrepreneurial role, fundamentally different from the specialized functions assumed after a company validates its market.

Probably not.

Founders of free consumer apps are advised to avoid paid user acquisition because it typically generates only temporary metric spikes while failing to address underlying growth limitations. Sustainable scaling instead relies on discovering non-obvious, low-cost distribution channels that bypass the need for expensive marketing campaigns. Paid spending is reserved exclusively for strictly bounded experiments with predefined learning objectives, serving as a tool for insight rather than a strategy for long-term revenue generation.

What do you do to help yourself prioritize and focus?

Founders are advised to rank their quarterly project lists and strictly execute only the top three priorities to prevent infinite scope creep and eliminate distractions. This batching process forces a rigorous re-evaluation of strategic objectives, compelling leaders to define a singular, measurable goal such as a demo day target. By mandating focus on one primary outcome, the method counters the natural tendency to manage multiple simultaneous tasks and ensures resources drive toward a specific result.

It's all about talking to your users.

Contrary to the popular myth that startups emerge from isolated coding sessions, successful founders like Brian Chesky of Airbnb prioritize direct engagement with future customers before a product exists. Chesky's early interaction with his first guest, Amol, exemplifies the continuous, two-way dialogue essential for identifying the correct user base and iterating a viable business model. This approach highlights a core principle where top-tier leadership derives critical strategic knowledge from real-world user feedback throughout the entire company lifecycle rather than relying on spontaneous ideation.

3 common YC interview mistakes

Diana

Founder interviews often falter when candidates fail to articulate concise value propositions or clearly define their target audiences, leading to confusing rambling explanations. Additionally, delivering overly rehearsed, robotic responses undermines the authenticity investors seek during casual ten-minute assessments of working compatibility. Addressing these three common pitfalls is essential for founders to avoid appearing defensive and instead foster genuine connections that facilitate successful funding conversations.

Is your startup default alive, or default dead?

Attributed to YC co-founder Paul Graham, the "Default Alive" framework forces startups to confront a binary financial reality where the only viable states are self-sustaining growth or imminent insolvency. A company is defined as "default alive" only if its revenue trajectory guarantees profitability before cash reserves are depleted, whereas any burn rate exceeding this threshold renders it "default dead." By eliminating intermediate states, this metric compels founders to honestly assess their runway and prioritize financial sustainability over social avoidance of failure discussions.

The best way to price any product

A strategic analysis outlines how cost, price, and value interact to define margin and customer acquisition incentives. The discussion evaluates two core pricing methodologies: cost-plus pricing, which anchors prices to underlying expenses, and value-based pricing, which aligns prices with perceived customer benefit. These frameworks determine the economic margins that drive seller effort and the value gaps that facilitate buyer engagement.

Introducing Startup School 2022

The transcript outlines an incomplete recipe segment listing ingredients such as eggs, sugar, and vanilla extract alongside atypical savory components including black pepper, ginger, and garlic powder. Potential transcription redundancies, like the repeated listing of vanilla extract, suggest an unpolished record that fails to provide cooking methods or final yields. The presentation concludes prematurely without substantive outcomes, market analysis, or actionable finalization steps.

Michael Seibel - How to set your KPI?

Michael Seibel

Founders are advised to align their primary success metric with one of four standard categories: revenue, usage, enterprise engagement, or technical milestones. This standardized top-level indicator must be supported by a pyramid of three to four customized secondary metrics that directly drive the primary goal, a structure exemplified by Airbnb's use of inventory volume and pricing to fuel revenue growth. Operational focus should shift from trying to manipulate the top-line KPI directly to optimizing these underlying secondary drivers, ensuring efficient feature development and investor comparability.

Tim Brady - How do you calculate burn rate, runway and growth rate?

Tim Brady

The presentation clarifies critical financial metrics for startups, defining burn rate as a strict weekly cash flow measure and runway as the resulting duration of available capital. It further details how founders must calculate Compound Monthly Growth Rates to avoid misleading investors and distinguish between predictable recurring revenue and less stable non-recurring income. Accurately applying these concepts allows entrepreneurs to demonstrate sophisticated financial management and improve their prospects for securing venture capital.

How Much Should You Spend After Fundraising? - Gustaf Alströmer

Gustaf Alströmer

Founders are urged to treat fundraising as a survival mechanism rather than a guaranteed outcome by adopting a capital-efficient mindset that assumes subsequent rounds will not materialize. To mitigate financing risk, the strategy mandates setting metric-driven milestones for a 24-month cycle and triggering fundraising efforts only when roughly eight months of runway remain. Behavioral governance techniques, such as capping marketing spend against revenue and segregating half the capital into an inaccessible account, are recommended to enforce frugality and simulate a scenario where those funds do not exist.