enable searching and linking of thought links
Sometimes relationships between thoughts can be complex (like the transformation of DNA into chromosomes). Since a lot of useful data can now be stored in a link, I would like for such links to show up in my searches.
Also, I see there is a timeline idea. Perhaps enabling thought links to become timelines associating a chain of events between two thoughts would be a good idea, too.

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Michael Turner commented
I would also like to comment on the implementation of the timeline feature. Say, if I am describing the transfiguration of DNA to RNA or chromatin/DNA into chromosomes. Each step of the timeline could be a thought connected to a point on the link describing the relationship of DNA to RNA or chromosomes. Thoughts attached to the timeline could be molecules and conditions affecting the DNA until its final transition into RNA or chromosomes.