For a publication in the Tridion Docs CMS that contains many topics - say hundreds or thousands - republishing changes to one or two topics is extremely time consuming, given only a few minor changes are made. The entire publication must be republished, even though 99% of the topics are unchanged. This seems very wasteful. It would be excellent if there was a way to republish only the individual topics that have been changed within a specific publication, as opposed to the entire publication. And then to have these one or two republished topics recognized by Dynamic Delivery, so that the corresponding publication(s) are all updated anywhere they appear on the presentation layer. This could drastically reduce publishing times and give greater control to the publishers to isolate changes.