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It's just.... I feel like I can imagine a system that would be better than pen and paper.
That means there's a possible startup.
Ha, in theory, but it looks like the guys at TeXmacs are already selling the product for free, so no dice...
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.
Notes for future OT posters:
1. Please add the 'open_thread' tag.
2. Check if there is an active Open Thread before posting a new one. (Immediately before; refresh the list-of-threads page before posting.)
3. Open Threads should be posted in Discussion, and not Main.
4. Open Threads should start on Monday, and end on Sunday.