Alternatively, you could say that Sifive just wants to retain their investment into cores with the C extension. Or that Krste is so wedded to the idea of "RISC

Alternatively, you could say that Sifive just wants to retain their investment into cores with the C extension. Or that Krste is so wedded to the idea of "RISC purity + C + fusion" as an alternative to more complex instructions that he invents justifications for it. In reality, it seems logical to me that all the players here have an interest in the long term health of RISC-V, including applicability to higher end cores. Qualcomm is showing data supporting their position. And Sifive is showing data supporting their position. Will be interesting to see which wins, and whoever it will be it'll hopefully be the best for the long term health of RISC-V even if it means one of the parties needs to partially redesign their cores.