I don't think he did.
As an entrepreneur, when I held the iPhone 4s in my hand ~10 years ago, I saw only possibilities. In 2022 when I hold my iPhone 13 in my hand, I see a known quantity with all the use-cases permanently ossified. I don't dare to dream about what is possible. Only Apple can truly move this platform forward. I'll be a passive observer.
This is not how I feel about the Mac, and I think Paul's post accounts for the difference. I really feel if I have a great idea and execute I can meaningfully impact the trajectory of the platform.
There is no doubt the iPhone and the iPad will continue to be commercially successful products. But now, 14 years after the launch of the App Store, that feels like such a poor measurement of their net-new impact on society. The magic is gone.