[pastage]

Every change is different in the same way every program is unique, the change of a couple of characters will alter the meaning. I think you have to try to write a diff UI to understand why it is hard.

Difftastic, Meld, diff -u, Word and other tools are amazing because they are usefull in many scenarios. Getting the UI right has been a long process, beingable to grok the changes is still hard even with thw best tooling. It is also a question of tool adoption it takes a long time to understand how a tool works.