[DylanDmitri]

I've been thinking about a programming language where parts of speech are flexible, so if you define a "square" function you could write both "square 3" and "3 squared".

[bmn__]

Already taken to its logical conclusion: https://esolangs.org/wiki/Perligata

[ampdepolymerase]

Try some of the DSLs for quantum computers. You basically want all of your operators to be commutative.

[gumby]

Have your read “Nine Hundred Grandmothers” by R. A. Lafferty?