You can say a lot of negative true things about Apple but this is just silly. There is no way Apple is going to expose that data to underlying apps in the same way they refused to do it in Vision Pro. I'd bet a good bit of money it works the same way where it's a layer on top of the app that the app can't access and from the video it looks like that's exactly how it works.
Not to underlying 3rd party apps, but for their ad structure it is a total possibility. It might not be now, but down the road this feature will be used for that and you must be certain that Apple already discussed and planned it.
Eye tracking is absolutely an accessibility feature. Just because you don't need it, and it can be abused, does not mean it isn't an absolutely game changing feature for some people.
No optimism, simply facts based on the lack of APIs for accessing any of this data. Since this is just a preannouncement (APIs will come at WWDC next month), we can't tell yet, but Apple's previous system attention tracking was never available in public APIs.
It is preferable to the reflexive cynicism and nihilism that is so prevalent online. At least the supporters have put some thought into their argument.
