As has become the norm over recent years, John Gruber was joined by a pair of Apple executives for his live episode of The Talk Show at WWDC. This year, Mike Rockwell, Apple’s head of augmented reality, and marketing executive Greg Joswiak, joined Gruber to talk iOS 12, augmented reality, and much more.

Yesterday, Apple announced a new file format focused specifically on augmented reality. Dubbed USDZ, Rockwell explained that the goal is to create a universal file format for AR, something like the PDF of AR:

Gruber also asked about the Lego demo we saw on stage during Apple’s WWDC keynote. Rockwell explained that there are a multitude of possibilities for the app and similar types of applications:

We worked closely with Pixar and then Adobe also came. We also connected with all of the other large vendors for 3D tools. What they’re telling us is they are going to provide native support for it in their tools.

Rockwell went on to explain AR persistence, a feature he said allows for users to create AR experiences that can be saved and shared:

Gruber pressed Rockwell and Joswiak on the augmented reality naysayers. Joswiak, however, likened the situation to the early days of the App Store when every developer didn’t necessarily see the vision.

It allows you to create AR experiences that can transcend one session.

Rockwell was asked why his title is officially AR/VR when Apple seems focused solely on AR, to which he answered with some details about Apple’s work in virtual reality:

Rockwell: With the same object detection Lego is using, there’s a big industrial company building macitence applications for large machines. You can actually see, in order to do this maintenance operation, I need to remove this, and this.

The conversation then shifted to other WWDC announcements, including the emphasis on performance in iOS 12. Specifically, Gruber talked about the performance on older devices and asked about the theory that Apple purposefully slows down older devices to force people to buy new devices:

Relating to privacy, Gruber noted how many of Apple’s competitors don’t keep all of the data on a device like Apple does. Joswiak touted this as a “differentiator” for Apple and attributed it to the company’s “super fast” chips and “software teams that can do amazing things whiteout resorting to the cloud.”

What we wanted to do was pay some special attention to the older devices under load. They test out of the labs just fine, but some people are jut heavier users than others. It’s those folks that have experienced more of the slowdowns.

As for the new tracking prevention features in macOS 10.14 and iOS 12, Jos explained that the purpose to make sure users are aware of what information of theirs is being tracked:

Regarding the new mindfulness features in iOS 12, Joswiak said that these features are ones Apple has been working on for the past year (and long before that), and are not a knee-jerk reaction to the industry’s growing focus on mindfulness in recent months.

The Apple executive said that the company knew it had to give users the data necessary to see specific information about their technology usage, including time spent in apps, categories of apps, notifications, and how many times users pick up their device:

One of the more surprising announcements at WWDC 2018 was the revelation that iOS 12 will bring support for third-party mapping applications to CarPlay:

Even how much you pick up the device. It’s really really interesting to see. I think for 95 percent of people, they’re just going to want to see this information. It helps them understand and balance.

Gruber also asked about the possibility of support for changing default applications on iOS, such as setting a different browser or mail application. Joswiak, however, refuted this idea and said customers expect a “very, very integrated experience” and adding that option could break the experience.

Joswiak also bragged that Siri has over 500 million active users and is “far and away the most popular virtual assistant.” He said the new Siri Shortcuts feature comes in a way that Apple hopes will give developers the power to integrate certain parts of their applications so that it isn’t overwhelming to users.

Meanwhile, Rockwell said that dark mode on macOS 10.14 was designed with pro users in mind:

Last but not least, Joswiak offered some additional color on Apple’s multi-year project to make it easier for developers to bring iOS apps to the Mac. He explained how the testing process with Apple apps is the first step, and it’s very much a case of dogfooding:

Joswiak: Pros want their content to pop and everything else to recede. And for the rest of us, it’s really cool. And I’m running dark mode because it’s really cool.

The full interview can be watched below:

There’s a lot of iOS apps. Not all of them will be great Mac apps, but a lot of them will be great Mac apps. If we do our job right, it shouldn’t be a ton of work for that to happen. All of the development is done on the Mac to start with, so it’s an option staring developers in the face.

At the end of the day, you’re getting a Mac app. They’re not iOS apps that are emulated on Mac. They are Mac apps.