Marcin Wichary has a lovely article titled “Photoshop’s challenges with focus, pt. 2”. If you’re into the minutiae of interface design, this is a good ‘un. It perfectly illustrates how impossible it is to try and compare two interfaces side by side as static images.

What matters in an interface is how it works, i.e. how you interface with it.

And when you bulldoze an interface to build a new one, comparing the old vs. new side-by-side to make sure you “captured everything” is a lie. It’s never obvious what has been lost because the interactive pieces are missing from the static images — and those are what matter most because it’s how the feature works!

I’ve found this to be true a lot as of late. Lots of tiny details that were meticulously crafted over years with specific rationales tied to real-world use cases, all completely bulldozed in a giant refactor. (All made possible by the great omniscient power of AI.)

Few notice what’s gone because few can see what’s being lost in the first place.