Earlier quoted context omitted.
> people can disagree about "move the camera" vs. "move the paper" - but pinch-to-zoom-in is wrong in all contexts. It's not wrong, it's just another manner of perspective: "shrink the aperture" vs. "shrink the paper". > how did these people not notice that they implemented pinch-to-zoom backward from how it works on their phones? On a touchscreen, it feels like you're actually working with the content directly, but…
Sure, there is a model that can explain it. Same w/ camera-vs-paper in swipe. By "wrong" I mean "does not work that way in any other device, and so violates the user's by-now-fairly-well-burned-in expectation". So, in terms of the principle of least surprise, wrong. Wilfully so, given that (to my knowledge at least) pinch-to-zoom has only existed for a few years and has only worked in this one way.
Btw, two finger scrolling on trackpads is usually opposite of what works on the phone too, and people have no trouble with that either
But ignore that, as i said, it must be configurable. No sense on debating on each others preferences