This just seems like Apple's reality distortion field in full force. There are already thinner phones. Just like there were thinner laptops than Macbook Air when it was launched but Apple fans in their Apple bubble hadn't heard of them and so bought Apple's propaganda.

I say this as someone that owns 2 MacBooks Pros, an Apple TV and an iPhone.

Absolutely, and yes on the Macbook Air! Although the Honor phone mentioned elsewhere calls itself "thinnest at 8.8mm", +/- camera mesa, etc... So at best 8.8mm folded in pocket for a complete phone. Much thicker that an iPhone Air complete phone (and more screen space).

But mostly one thing that's difficult for us to evaluate is whether this is "at scale and profitably". On the competitors' side anyway. The Honor seems to be a $2000 phone (higher even than Google's foldable!) - probably before tariffs, not clear. How many will sell? What margin will Honor make on this? Hard to tell although it would be possible to dig the historical numbers.