Zooming seems like an inevitable consequence of how screens and eyes work, what am I missing? Forget text for a second, if I want to see fine details in an eno

Zooming seems like an inevitable consequence of how screens and eyes work, what am I missing? Forget text for a second, if I want to see fine details in an enormous image I'm going to have to zoom in. I normally adjust font size rather than zooming text but it's nice to have both available.