Ex-Nvidia VC Amulya Vishwanath: 'Physical AI is in its LEGO era'

Amulya Vishwanath, a venture capitalist who previously worked at Nvidia, has a framing practitioners should hear: "Physical AI is in it's LEGO era." She made the comment in a TechCrunch interview, and the metaphor does real work if you build, fund or deploy robotics and embodied AI systems.

The phrase is doing two things at once. First, it signals modularity — the idea that the components of physical AI, from perception stacks to actuation and control layers, are becoming standardized pieces you can assemble rather than systems you build from scratch. Second, it signals maturity stage. LEGO bricks existed before anyone assembled a castle. Vishwanath's point is that physical AI has the bricks. What's coming next is the assembly.

That reading comes directly from her Nvidia background. She spent time inside the company that supplies the compute layer underpinning most of modern AI, then crossed to the investing side. When someone with that vantage says the field is modularizing, it's worth parsing what she means for the money and the builders.

What does this change for founders and investors?

If Vishwanath is right, the winning strategy shifts. Instead of betting on one company owning the entire robot or embodied-AI stack, the LEGO framing suggests value accrues to whoever makes the best bricks — and to whoever assembles them fastest into products customers actually want.

For founders, that argues for narrow, well-engineered components with clean interfaces. For investors, it argues for portfolio construction that covers multiple layers of the stack rather than a single vertical. It's the same structural shift software went through, arriving now in hardware-adjacent AI.

The framing also implies a timing call. A LEGO era is an early era — a period of standardization before consolidation. Investors who believe the metaphor will underwrite early-stage bets on components. Those who think assembly is already underway will chase the integrators instead. Vishwanath's language places her, implicitly, in the first camp.

Why the Nvidia pedigree matters here

Vishwanath isn't calling this from the outside. Nvidia sits at the center of the compute infrastructure that physical AI depends on, and the company has pushed its own physical-AI narrative hard in recent years. An alum turned VC saying the field is in its LEGO era reads as a grounded stage assessment, not hype.

Her exact words, per TechCrunch: "Physical AI is in it's LEGO era." Keep the quote verbatim, typos and all — it's the kind of line that travels.

The practical takeaway for the market: watch which bricks get standardized first. Whoever owns the interface standards of physical AI's component layer will hold the leverage when the assembly era begins.