[eviks]

But the UI isn't physical, hence my point - there is no feedback from dragging a Window, your hand doesn't get heavier because you're now holding a Window with mass/inertia/friction.

You have those when moving a mouse while holding a button, but that's not related to UI, you could just as well use it to do nothing, feedback is the same - NOT from the UI

Otherwise your fingers have the same things, so any gesture involving those is feedback just like the one you get if you touch non-finger object like a mouse

[yencabulator]

You can feel that you've clicked a button (mouse, keyboard or whatever), but you can't feel that the camera has registered your pinch gesture.

[eviks]

There is no difference. You can't feel the part of the computer system that registers those clicks, the same as with the camera. Maybe your mouse driver registered a double click due to a faulty sensor, maybe it registered nothing for the same reason, maybe you bluetooth mouse is disconnected or out of juice, so nothing resisters.

All of this is exactly the same - you have no tactile UI feedback

[rpdillon]

Typing on a glass screen is different than typing on an actual keyboard.

[eviks]

yet it's all the same category, which also exists in VPro, so there is no difference

[yencabulator]

The mouse button, like most buttons, is "clicky" specifically for tactile feedback.

[eviks]

you've skipped a word there after tactile, which explains why you don't get it

[yencabulator]

The likelihood of a mouse button tactile feedback not matching what the computer actually sensed is much lower than the likelihood of a camera not picking up your pinch-touch gesture.