Today, each instance of custom-written scientific software is like an unknown, novel piece of scientific hardware. Each piece of software might as well be an “amazing wozzlescope” for all that anyone has experience with its accuracy and precision. No one can even tell if it has subtly malfunctioned. As a result, the peer review of scientific software does not indicate even a whisper of the same level of external objective scrutiny that the peer review of scientific hardware indicates.
So we really have no idea if the highly touted climate models are at all reliable, right? Just asking.