...many new guys to jet transport flying, never having been informed about all this, would tend to agree with the idea that 'the computer knows all' and no logical thought process is generally required.
The computer knows only when it's been programmed to know. It is POSSIBLE to give it the smarts to provide a margin for an unstable air mass (SAT creep) and other anomalies.
But that would just contribute to a further "dumbing down" of the newbies, IMHO.