Love the project, but after reading many papers I realize, that the lack of verbosity in formulas is deeply misguided.

Take this picture that explains RWKV attention: https://raw.githubusercontent.com/BlinkDL/RWKV-LM/main/RWKV-formula.png

What are the semantics of i, j, R, u, W, and the function σ? It should be obvious from the first look.