Facebook (FB) CEO Mark Zuckerberg and Tesla (TSLA) CEO Elon Musk might not see eye-to-eye on everything involving the use of artificial intelligence, but Zuckerberg says they can agree on one thing about self-driving cars: they’ll absolutely save lives and need to become a reality.

During the Viva Technology in Paris, Maurice Levy, the chairman of the advertising firm Publicis, asked Zuckerberg whether he was “on friendly terms” with Musk, who has said AI could threaten humanity.

‘He’s making a point that I really agree with’

In response, Zuckerberg explained how he is optimistic about AI and what it could mean for everything from curing diseases to keeping communities safe. Zuckerberg also pointed out that he and Musk agree that AI could save thousands of lives each year when used in self-driving cars.

“I think that he’s making a point that I really agree with on, which is that look: Over the long term if we can get to a state where we have good self-driving cars — you know one of the leading causes of people dying is car accidents — if we can get to a state where we have good self-driving cars, then that is going to potentially massively reduce one of the leading causes of death, and is a very important humanitarian thing that needs to be done,” Zuckerberg said.

Musk recently criticized the media’s coverage of accidents involving Tesla’s Autopilot semi-autonomous feature. The CEO especially took issue with The Washington Post’s decision to run a front-page article about a Tesla crash that resulted in the driver suffering a broken ankle.

“It’s super messed up that a Tesla crash resulting in a broken ankle is front page news and the ~40,000 people who died in US auto accidents alone in past year get almost no coverage,” Musk tweeted.

‘It will never be perfect’

Whether fair or not, Tesla has been in the headlines several times for accidents that happened when its vehicle’s Autopilot was active. In April, Musk addressed a crash involving a Tesla that resulted in the driver’s death. Autopilot was active at the time, but Musk said the driver’s hands hadn’t touched the steering wheel for 6 seconds. The system isn’t designed for fully autonomous functionality and requires a driver’s attention.

“It’s important to emphasize it will never be perfect,” Musk said during an interview with CBS. “Nothing in the real world is perfect. But I do think that long-term it can reduce accidents by a factor of ten. So there are ten fewer fatalities and tragedies and serious injuries, and that’s a really huge difference.”

Zuckerberg echoed those sentiments, saying that self-driving vehicles and AI in general will take time to perfect — but that to get there, it needs to be given the chance to develop.