The Anatomy of a macOS App

That first os screenshot made my heart sink; a reminder of how far we've fallen.

How I wish our operating systems still looked like this. Utilitarian, useful. No rounded corners and bubbly icons, reducing the useful space more and more each year.

The incredible quality of Mac hardware is the only thing keeping me from jumping to a thinkpad / omarchy setup.

Rounded corners are a utilitarian feature. Human vision is based on edge detection and corners unnaturally activate it more than necessary. It's basically like being continually poked in the eye.

https://folklore.org/Round_Rects_Are_Everywhere.html

The link tells the story how Bill Atkinson sped up drawing primitives on early Apple devices.

It does not support the claim that corners are in any way special for human vision. I’m very skeptical on that. AFAIK motion is most easily perceptible.