That's very funny to see, as I was just watching a presentation Matz gave last year where he was arguing static types won't be needed in the future because LLMs will just figure it all out, so Ruby with its dynamic types was well positioned to be the language of LLMs.

https://youtu.be/XVaRRryB_cQ?si=CuXiMDdwccH6wOra&t=760

Basically he's saying static typing is needed for AI today because it's "junior level", but for senior level programmers they are more experienced so these types blend into the background; therefore when AI is a senior level in the future, it will also not require static typing to not make mistakes. That writing correct code will be as natural to the LLM as moving your arm is to you.