This article was making the rounds last year, but I don’t think I’ve seen it posted here - and it seems like a good fit.
It talks about how disconnected the Japanese writing and speaking systems can be, and how that can create some affordances. I found it interesting, at least.
Interesting, but doesn’t motivate me to want to learn further lol. It basically told me you can convey much less meaning by speaking than writing, but writing is very difficult to learn.