Nov 23, 2023 · 41m · how-i-built-this
The future of driving is autonomous with Dmitri Dolgov of Waymo
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gold bands on the timeline = statements, start to end. Hover to read, click to jump. CC turns on captions
In this episode of How I Built This, Guy Raz interviews Waymo co-CEO Dmitri Dolgov to examine the engineering evolution, safety principles, and commercial expansion of autonomous vehicles from DARPA Challenge origins to fully driverless urban fleets.
How this conversation actually went
Every chapter scored 0–10 on four independent dynamics. Hover any point for the reasoning behind the score. Guy holds 43.5% of the talking time here. How this is scored →
Guy as informed peer 4.9 Guest teaching 3.7 Guest disagreement 1.4 Guy pushing back 2.1
speaking balance: gold is Guy, purple is the guest (3 minute bins)
Sharpest disagreement ▶ 37:44 Dolgov rejects premise on ride-hailing profitability
Dolgov directly challenges Raz's claim that ride-hailing is not where Waymo will make money, insisting it is a massive, highly profitable opportunity with autonomous vehicle unit economics.
Hardest push from Guy ▶ 34:23 Raz presses on legal liability and fluke crash guaranteesRaz refuses a general safety answer and directly confronts Dolgov on accepting corporate liability if a Waymo vehicle causes a fluke accident.
Biggest teaching moment ▶ 23:10 Dolgov explains sensor physics and weather penetrationDolgov educates Raz on the physical limitations of passive camera systems compared to active radar and lidar wavelengths in fog, rain, and blinding light.
Guy holds their own ▶ 22:04 Raz compares Waymo multi-modal sensors to Tesla vision-onlyRaz articulates the core industry architectural split, citing Tesla's camera-only redundancy argument to challenge Waymo's expensive hardware stack.
the scores for every segment, with the reasoning behind each
| Chapter | Topic | Guy as informed peer | Guest teaching | Guest disagreement | Guy pushing back | Why |
|---|---|---|---|---|---|---|
| Google's Secret 100,000-Mile Autonomous Car Mandate | 5 | 3 | 1 | 1 | Guy Raz demonstrates strong background knowledge of Google's early 2-year autonomous vehicle challenge, citing specific milestone requirements. Dmitri Dolgov describes the optimism, devious route design by Larry Page and Sergey Brin, and the team's sprint to completion. | |
| Unforeseen Real-World Edge Cases and Road Testing | 4 | 4 | 1 | 1 | Dolgov explains early unpredictable edge cases, such as closed tollbooth gates on the Golden Gate Bridge and falling bicycles. Raz actively supplements the discussion with realistic driving complexities like variable shoulder lanes. | |
| Listener Voice Memo and Mid-Show Sponsor Break | 5 | 4 | 1 | 2 | Following the mid-roll break, Raz probes the 2013 strategic pivot from driver assist to full autonomy and asks whether Waymo ever considered manufacturing cars. Dolgov clarifies that human driver overreliance forced the shift and explicitly dismisses car manufacturing as outside their scope. | |
| Evolution of the Waymo Driver and First Autonomous Rides | 5 | 4 | 1 | 1 | Raz recalls the public 2015 Austin ride by Steve Mahan, confirming his familiarity with Waymo's timeline. Dolgov outlines the evolution across hardware generations and the custom safety features built into the early Firefly prototype. | |
| Sensor Suite Architecture: Multi-Modal Fusion vs. Vision-Only | 6 | 5 | 2 | 3 | Raz introduces the industry debate between Tesla's vision-only philosophy and Waymo's multi-sensor approach. Dolgov educates on the physics distinction between passive optical sensors and active radar/lidar sensors that penetrate adverse weather and high-beam glare. | |
| Commercial Scaling and the Launch of Waymo One | 5 | 3 | 1 | 1 | Raz recaps the commercial progression from Chandler pilots to broader testing. Dolgov explains the architectural decision to jump directly to fifth-generation Jaguar I-PACE platforms for dense urban environments rather than incrementally expanding older minivans. | |
| Passenger Experience and Overcoming Rider Anxiety | 4 | 2 | 1 | 2 | Raz brings up rider apprehension and questions how Waymo reassures nervous first-timers. Both Dolgov and Raz bond over the psychological shift where passengers normalize the experience and return to their phones within minutes. | |
| Safety Track Record and Legal Liability Frameworks | 5 | 4 | 2 | 4 | Raz presses Dolgov on technology misuse and legal liability in hypothetical autonomous vehicle collisions. Dolgov grounds the defense in current highway mortality baselines and confirms Waymo accepts responsibility for driver actions. | |
| Fleet Economics, Commercial Partnerships, and the Future of Urban Mobility | 5 | 4 | 3 | 4 | Raz challenges the financial viability of ride-hailing versus software licensing. Dolgov firmly pushes back against dismissing ride-hailing economics and defends the viability of personally owned autonomous vehicles within a decade. |
Statements from this episode (10)
Dolgov: Google gave self-driving team a 100,000-mile zero-intervention mandate
“The first one was to drive a 100,000 miles in autonomous mode. That was, you know, way more than orders of magnitude, more than, you know, what anybody has done at that time. And the second one, and, you know, actually that one turned out to be more interestin…”
Google pivoted to full autonomy after test drivers slept at the wheel
“One was what we learned from people using the driver assist system. They would overtrust it. They, you know, would put on makeup and, you know, text and, you know, one guy actually fell asleep.”
Dolgov: Waymo never seriously considered manufacturing its own cars
“I don't think we ever seriously entertained building a car. It just never made sense, you know, to me, you know, or others to, you know, do that. Like we're not a car company. Building cars hard, right? There's many companies that, you know, spend a hundred ye…”
Waymo built custom LiDAR after off-the-shelf sensors proved too unreliable
“The sensors at that time, you know, didn't have the level of reliability or capability that we would need, that we would trust, you know, to go to full autonomy. So we build, you know that generation had our own lighters and, you know custom sensor suite.”
Dolgov: Waymo's current vehicle generation uses 29 total cameras
“On the current generation, we have kind of all of them, including internal ones, we have 29 cameras.”
Waymo riders typically stop paying attention to the road within minutes
“What we very consistently see, and I guess I would love if To hear if that matches your experience, but once people get in the car, just, you know, after a couple of minutes, they get very comfortable and they go back to, you know, doing whatever they want to …”
Dolgov: Waymo accepts legal responsibility for actions of its autonomous driver
“For the actions of, you know, the Waymo driver. The responsibility, you know, lies, you know, with Waymo.”
Swiss Re study: Waymo eliminated bodily injury claims over 4 million miles
“That study that Swiss RE has done was very encouraging that when they looked at, you know, almost four million miles of, you know, our fully autonomous operation, they found that massive reduction in, you know, a hundred percent reduction in the bodily injury …”