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Smart Driving Cars episode 413- SpaceX, Waymo, NVIDIA, May Mobility & more

Smart Driving Cars episode 413- SpaceX, Waymo, NVIDIA, May Mobility & more

Smart Driving Cars Podcast May 22, 2026 45 min
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About this episode

The conversation jumps from real-world autonomy limits to the policy and compute behind scaling. Waymo is said to have paused service in four cities after heavy rain and flooded roads, prompting debate about whether systems can rely on HD maps and handle deep water. They connect these reliability gaps to regulation—state bills like Minnesota’s failing, and hopes for federal rules for interstate commerce. The hosts also cover Nvidia powering Uber’s expansion, May Mobility’s robotaxi deal, and how algorithmic control outputs can be generated fast for safer driving.

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Technical Too Afraid to Ask
Car

Morgan Six Plus

"...u a postcard from the beach. Yeah that might be a six plus. That might still not get you a seven. But Bob an..."

The Morgan Plus Six is a small, two-seat sports car made by Morgan. It’s designed for driving for fun, with a focus on performance and a classic-looking style. People mention it when talking about how fast or exciting different sports cars are.

Term

Robo taxis

"I think they can get a sense of Waymo was forced to pause service in four cities this week because Robo taxis struggled to deal with heavy rain and flooded roads."

Robo taxis are self-driving cars that you can summon like a rideshare. They still rely on sensors to “see” the road, and bad weather or flooding can make that much harder.

Term

flooded roads

"Robo taxis struggled to deal with heavy rain and flooded roads. There was a vehicle in Atlanta that got stuck Wednesday while driving through a flooded street."

Flooded roads are dangerous for self-driving cars because the water can hide what’s under or on the road. It can also make the car lose grip and get stuck.

Term

heavy rain

"Waymo was forced to pause service in four cities this week because Robo taxis struggled to deal with heavy rain and flooded roads."

Heavy rain makes it harder for self-driving cars to “see” clearly. It can also change what the road looks like and how slippery it is.

Company

Waymo

"I think they can get a sense of Waymo was forced to pause service in four cities this week because Robo taxis struggled to deal with heavy rain and flooded roads."

Waymo is a company that builds self-driving cars. Here, they’re mentioned because their service was paused after problems in bad weather and flooding.

Term

memory management

"unfortunately, we didn't have one line of code in our stuff. And therefore, we didn't do many memory management properly. And after 9.8 miles, we ran out of memory."

Memory management is how a computer program keeps track of its “working space” while it’s running. If it doesn’t manage that space well, the program can run out and stop doing the job it needs to do.

Concept

DARPA challenge

"when we did the DARPA challenge in 2005, unfortunately, we didn't have one line of code in our stuff... And after 9.8 miles, we ran out of memory."

The DARPA Challenge was a competition that tested self-driving technology. The speaker is using it to explain how early software problems could stop a vehicle from completing a route.

Concept

world model (saving historic locations of detected objects)

"we were saving the location, historic location of every object we had detected... We might actually be able to go in reverse and not hit something and then find it different way out."

A world model is the car’s internal “map” of what’s happening around it. Keeping track of where objects were seen helps it make better decisions, like whether it can back up safely.

Term

one camera looking forward

"we could only afford one camera looking forward. In case we had to go backwards, we say, what the hell is behind us?"

“One camera looking forward” means the car is mostly relying on a single front-facing view to understand the world. If you need to maneuver, you may not know what’s behind you as well.

Term

detecting objects

"we were saving the location, historic location of every object we had detected to get that far."

Object detection is how the car figures out what other things are around it. It’s like the car trying to label “there’s a car here” or “there’s an obstacle there.”

Company

Nvidia

"I'm thrilled. And, you know, if it's Nvidia's providing the chips to do that, they're probably the most. I, of course, think they're the most competent folks out there doing it."

Nvidia makes powerful computer chips. For self-driving cars, those chips help the car’s software “think” by running the AI that sees the road and plans what to do.

Company

May Mobility

"eCar X backed by Gillies Lee Shifu will sell Robo Taxis to May Mobility in a $750 million deal that's going to involve, I think, thousands of vehicles... These things then are productive elements in society, which actually should generate a return for May Mobility."

May Mobility is a company that runs self-driving taxi/shuttle services. The discussion is about them getting more vehicles to expand where they operate.

Concept

driverless cars

"A bill that would have allowed driverless cars in Minnesota did not pass as the legislature there wrapped up the latest session."

Driverless cars are cars that can drive themselves without a person behind the wheel. The hosts are talking about laws that determine whether and where those cars are allowed to operate.

Concept

federal regulation

"Yeah. Well, that's why we need the federal regulation, which is coming out. And"

Federal regulation means national rules. For self-driving cars, the idea is that one set of rules could make it easier to deploy them consistently across many states.

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