This is a must-have feature for me, because of one specific use case – linking unlinked references for terms which are aliases of the page name.
Let’s say you have a massive database of notes, including the contents of articles you’ve clipped. You have a page about AI and you want to link it to all other notes that are roughly related to AI, including mentions of “artificial intelligence”, ML, singularity, and so on.
Well merging provides you with an extremely efficient way to link these unlinked references which are not currently matching your title:
- Create new notes for all of the terms you want to match
- Link all the unlinked references you want to ultimately transform into a backlink to AI
- Rename your notes to merge them with the AI note and bring the backlinks with you
This is how it works in Roam and I assumed it would work this way for Obsidian too.
Where Obsidian could bring it’s own magic to this flow is by automatically creating alias links. e.g. when merging Machine Learning and AI, don’t rename [[Machine Learning]] to [[AI]], rename it to [[AI|Machine Learning]]. This way Obsidian would have an edge over Roam in that it would be able to preserve the original context.