WhoBuilt

Why Physical AI Is the Next Platform Shift

Jul 25, 2026· 20 min· 11K views·Watch on YouTube

Speaker

Eric Landau, co-founder of Encord, discusses building data infrastructure for physical AI at a Y Combinator event with a host.

From physics and trading to AI

Landau connects his work in particle physics, high-frequency trading, and AI through the shift toward scaling machine learning with more data and compute. He left a lucrative quant job during the volatile early days of COVID because he and his co-founder believed AI was a major technological shift and wanted to build something useful.

Finding product-market fit over time

Encord spent a couple of years struggling to persuade customers that AI mattered. ChatGPT made people more receptive, while the product continued improving gradually. Landau says there was no single moment of product-market fit; one sign came when a sale closed without the founders knowing what the customer did.

Expanding into physical AI

Encord began with computer vision, then expanded to multimodal data as customer needs and the market shifted toward physical AI. Landau points to robotics, autonomous vehicles, logistics, and manufacturing, and estimates that 80 percent of economic activity involves moving or manipulating physical things. The company tracks emerging needs by talking with customers, prospects, and other founders.

Building a data pipeline at scale

Autonomous driving is closer to mass production, while robotics is a growing area across humanoid, consumer, and manufacturing applications. Encord collects data in a Bay Area facility and ingests customer production data, including video, sensor data, audio, and language. Its product helps select, manage, annotate, enrich, and evaluate data; Landau says the company serves hundreds of customers and handles multiple petabytes.

Hiring, location, and founder resilience

Encord built operations near its many Bay Area customers while Landau remained in London, which he sees as a strong source of AI and engineering talent. The company learned sales hiring through repeated attempts and became quicker to act when a hire was not a fit. Landau advises founders to accept the emotional swings of startup life and learn to influence their own reactions.

Takeaways

  • A market can move toward a product gradually, so track improving customer pull rather than waiting for one clear breakthrough.
  • Talk to customers and people working ahead of you to inform the next company bet.
  • Collect and curate only the data that helps train or evaluate a model; production generates far more data than teams can use.
  • Build close to customers, talent, and investors according to which matters most for your company.
  • When a hire feels wrong, make the decision sooner and learn from the result.

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What was claimed 6

  • founded
    “Eric Landau, co-founder of Encord”
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    Unverified1 source· Talk
  • feature
    Encord: Manages, curates, annotates, enriches, and evaluates multimodal AI data
    “managing that data and curating it”
    YouTube
    Unverified1 source· Talk
  • metric
    Encord: Handles more data than was used to train GPT-4, as far as the speaker knows
    “We deal with more data than was used to train GPT-4, as far as we know.”
    YouTube
    Unverified1 source· Talk
  • metric
    Encord: Multiple petabytes of multimodal data
    “We're dealing with multiple petabytes of all different types of multimodal data.”
    YouTube
    Unverified1 source· Talk
  • metric
    Encord: Hundreds of customers
    “We have hundreds of customers.”
    YouTube
    Unverified1 source· Talk
  • feature
    Encord: Focuses on physical AI and data scalability
    “Our focus is physical AI and data scalability”
    YouTube
    Unverified1 source· Talk

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