Very interesting, but I don't think that this is literally something that could be taught in kindergarten. OTOH, it does point towards some interesting ideas. One might attempt to teach the subject without teaching the subject, per se. Teach a pictorial calculus - or perhaps several pictorial calculi - that may or may not have any correspondence to physical reality (let alone QM). Perhaps those who are imbued with this sort of thing would find QM a lot easier than I did the first time around.

This is great stuff, but I'll be convinced when I see it being taught successfully to a group of Kindergartn kids. If it works, it could have a lot of implications for improving education. Logic in general - and logical formalism in particular - is something that schools (in the US) do not do well.