You can also manually turn some checks off. In some Lisp systems, declaring an optimization setting of (safety 0) will turn off a bunch of checks, even ones tha

You can also manually turn some checks off. In some Lisp systems, declaring an optimization setting of (safety 0) will turn off a bunch of checks, even ones that the compiler can't statically determine are safe to skip. Of course this should be used very carefully if at all (especially in code that's parsing arbitrary data from the internet!).