Billionaire Bill Gates, last week, spent some time testing an autonomous vehicle (AV) on the busy streets of London.

The self-driving car was made by tech start-up Wayve, a company that is developing a new approach to autonomous driving, according to Gates.

He was joined by Wayve founder and CEO Alex Kendall. They were accompanied by a safety operator Theepa, who was assigned to launch the system. Making himself comfortable in the front seat, as Kendall sat in the back, he said, “Supposedly the easiest job in the world.”

Then, the trio wore their seat belts and headed to get some fish and chips in downtown London.

While most AVs can only navigate on streets that have been loaded into their system, Gates said Wayve’s deep learning technology was different. It operated like a human driver after learning to drive in one city and then applying that knowledge to drive in new places.

Throughout the ride, Wayve’s algorithm interprets its environment and controlled the speed, the steering, the indication and the brakes. The car sensed objects and people on the road and slowed down.

Detailing his experience in a YouTube video that was shared on his blog, the 67-year-old said that he believes we will reach a tipping point with autonomous vehicles within the next decade. Gates shared that he has always loved driving cars.”I’ve always been a car guy. When I was younger, I used to love driving fast (sometimes too fast). Now, I look forward to my daily commute to work. There’s something so fun yet meditative about driving a car. Despite that, I’m excited for the day I get to hand over control of my car to a machine. That day is coming sooner rather than later. We’ve made tremendous progress on autonomous vehicles, or AVs, in recent years, and I believe we’ll reach a tipping point within the next decade,” he writes in his blog.

In his blog, titled ‘Hands Off The Wheel: The Rules Of The Road Are About To Change’, Gates is excited to see how autonomous vehicles change transportation in the future – just like the personal computer changed office work.

Coming back to the ride, Gates had a blast in the front seat. “I will give you credit for picking one of the most difficult situations I’ve seen in an autonomous car ever. The humans are having a hard time. You can tell. They’re trying to make judgement calls,” he could be heard saying in the video. The video ends with them enjoying fish and chips.

Calling it a “memorable ride,” Gates wrote in his blog, “The car drove us around downtown London, which is one of the most challenging driving environments imaginable, and it was a bit surreal to be in the car as it dodged all the traffic. (Since the car is still in development, we had a safety driver in the car just in case, and she assumed control several times.)”

With help of a chart, Gates even tried to explain self-driving cars to his more than 62.3 million followers on Twitter.

“Over the next decade, we’ll start to see more vehicles crossing this threshold. AVs are rapidly reaching the point where almost all of the technology required has been invented. Now, the focus is on refining algorithms and perfecting engineering. There have been huge advances in recent years—especially in sensors, which scan the surrounding environment and tell the vehicle about things it needs to react to, like pedestrians crossing the street or another driver who swerves into your lane.

“There are a lot of different approaches to AVs in development. Many vehicle manufacturers—like GM, Honda, and Tesla—are working on models that look like regular cars but have autonomous features. Then there are companies entirely focused on AVs, some of whose products are pushing the boundaries of what a vehicle can be—like a perfectly symmetrical robotaxi or public transit pods. Many others are developing components that can be installed to give an existing vehicle autonomous capabilities,” he added.

Here’s the complete video of Gates testing the self-driving car.