I understand the desire to collect thoughts in private notes; I have 24 notebooks full, stretching back to 2002. Early on I didn't feel confident about expressing them, and waited until I did. When I got to that point, I realized I didn't know how to express my inner language of ideas into something others understood. Now I'm in the phase of translating that complexity into accessible words, and that has been difficult. (In Joseph Campbell's terms this is the "delivery of the elixir" phase lol).

Regarding the specific problem you're investigating, I'd feel remiss if I didn't mention a 1889 book called "Time and Free Will" by Bergson. To summarize the argument: mental events as privately experienced are of a different mode than how you publicly express them. He argues that you experience the qualitative, heterogeneous modes of consciousness in time, then try to communicate them to others by translating them to objective modes in space. It seems like you would not agree with his conclusions, but it's at least a relevant analysis of the topic. I enjoyed the book in general, as it has a lot of relevance to AI development IMO. I plan on writing a post about it soon.