It tests their assembly lines and supply chain by producing 100 million titanium cases.

They did something similar when they transitioned the product line to aluminum.

(As a product, it’s the opposite of what I’d want — worse battery, bigger screen, worse camera, but they’ll certainly sell enough to debug the assembly lines.)

That doesn’t make sense, the 15pro and 16pro were already titanium, and they moved AWAY from titanium for those phones in the 17pro.

I don’t disagree that it has something to do with supply chain, but it’s not the titanium cases.