Yes, it would be nice to see something other than speed issues and slow networks.
I think encryption can be one. If you don't know the internals and handle it as a black box, you can lose security. For example if you encrypt a string twice with a one time pad, you get back the original.
Another could be presenting content. For example saving content as html or pdf. Pdf has a concept of pages and you may have aesthetically suboptimal pagination if you try to abstract away the final format. You may even need to cut a sentence from the content to have optimal visuals.
Or if you tried to consider all image formats equally and autosaved to JPEG every minute while editing, the lossy compression would degrade quality.
The fix is usually exposing the particular aspect on the interface. The problem is that usually new things that we think should fit some abstraction turn out to have peculiarities we didn't think of when designing the abstraction. We thought our abstraction is more general and future-proof than it is.
I think encryption can be one. If you don't know the internals and handle it as a black box, you can lose security. For example if you encrypt a string twice with a one time pad, you get back the original.
Another could be presenting content. For example saving content as html or pdf. Pdf has a concept of pages and you may have aesthetically suboptimal pagination if you try to abstract away the final format. You may even need to cut a sentence from the content to have optimal visuals.
Or if you tried to consider all image formats equally and autosaved to JPEG every minute while editing, the lossy compression would degrade quality.
The fix is usually exposing the particular aspect on the interface. The problem is that usually new things that we think should fit some abstraction turn out to have peculiarities we didn't think of when designing the abstraction. We thought our abstraction is more general and future-proof than it is.