Can you do better in a few hundred lines of code?
It would be nice to compare the results of multiple toy simulations to see if there are some shared outcomes.
I can only guess that one has a more verbal or visual imagination depending on his/her development, and it would be interesting if we knew more about the genomic factors taking place in the development of the stream of consciousness. Depending on the context I also have both verbal and visual streams of consciousness. A funny thing is that my verbal mental streams are far more fluid in English, which is not my fully native language, than in Italian. When I write in Italian my imagination is much more visual and less descriptive.
I've read that post. It's still a mistery to me the fact that there are people without internal monologues that can speak without any sort of problem. Chomsky and Berwick hinted that recursive language may have evolved as "an internal monologue" in their "Why Only Us" essay, where they surely can explain their evolutionary point of view better than me.
I guess if that there really are people without "the internal tool of thought", they should volunteer to be studied, especially with brain imaging and functional tests. They could help us understand more about where language comes from.
The keyboard is working fine and since it's powered by a Teensy 3.2/LC it can be plugged into any USB host, I'm still waiting to get the keys printed in order to put the working build in the case. The CardKB project is also interesting if you want a keyboard with soldered keys, only "downside" is I2C bus.