Is it hard? Yes Our soundness bugs devastating? Yes Are we closer than you might think? Yes From Day 1, yes the same day we released our proof system, @RiscZero began the long process of formally verifying our zkVM. Recently we launched "Picus" which mathmatically proves determinism in our circuits during CI! This is the cause of 96% of soundness bugs in ZK systems (Per ZK-Security). This effort plus some more we are working on, shows we can get to a provably sound RISC-V zkVM faster than you most think.