> The one thing that arguably doesn't completely fit is the multiple insn sizes, and even then real-world RISC-V implementations have only two, at 2 or 4 bytes.

> The one thing that arguably doesn't completely fit is the multiple insn sizes, and even then real-world RISC-V implementations have only two, at 2 or 4 bytes. They will have a third very soon. The encoding space for 4-byte instructions is almost spent.