- Backed up to cloud
- Has a mobile app that is easy to make small changes
- Simple file format like markdown
- Option to export data out as a backup (it's just markdown files, you don't even need to export, just copy them. Or export to PDF)
- Allow uploading arbitrary files like PDFs, images, receipts etc... (https://obsidian.md/help/file-formats)
- Nice to have: support for inline tables of data with simple calculations/sorting
The hyperscalers like AWS will made great use of these to serve up models that will be relevant for several years. But right now, we're still seeing significant bumps in model quality every couple of months - especially with open-weight models like Deepseek/Kimi/GLM.
Until that point, though, I don't see how this is ever going to be cost effective vs general purpose hardware.
I also think we'll see miniature versions of this baked into mobile hardware for super fast and efficient on-device LLMs.