The original post (linked above) included a list of musing ideas to help others get a feel for what I mean by "random thoughts". The format of that didn't quite fit in the post above, so I'll include them here:

More Musing Ideas

• Why am I feeling sad lately?

• Why do we see sunsets as beautiful?

• Second-guessing [prior topic]

• What function does the press fulfill in society?

  • Why is that valuable?

  • How could that value be measured?

• What is the single, smallest change I could make to the U.S. constitution to have the biggest impact on the problems I see?

• Do stories follow mathematical laws?

  • What would that mean for us?

  • How could such a thing be measured?

  • How come we seem to intuit these laws?

• What is math?

• Is [current stress point] a long-term problem or a temporary one?

• What is the cognitive purpose of stereotypes?

• What would it feel like to live 10,000 years ago?

• Let's try to comprehend the fullness of human history!

• I had an idea for a cool—but probably useless—invention!

Thanks for the heads-up. It's fixed.

Yeah, a lot of the thoughts we have aren't useful or good, but without writing you don't have any way to inspect them. I remember CGP Grey (youtuber/podcaster) said that writing down his thoughts showed him just how much his brain re-visited the same silly ideas. 

We don't have as much introspective power as we think we do.

Good luck on your writing journey.

Hey all, new here. My interests tend to be interdisciplinary and I'm trying out LessWrong as a place that seems more amenable to that kind of stuff. As far as I could find this topic seems rather undiscussed (or at least I couldn't find any other discussions on it), but if you do know of any such sources please include links!