....
> My point had to do with the many unknowns that exists in our planet and
> regardless of how much time and effort spent this far, mysteries still
> abound..
>
....
> > Geologists will *always* be unsure of many things; as John pointed
> > out, though, it does not follow that they're wrong about everything..
>
> In like manner, they're not right about everything either..
>
What you've said in these excerpts is very true, Dario.
But remember, no thoughtful geologist would disagree with any of this.
These points are uncontroversial.
What is -very- controversial, because it just doesn't follow at all, is
going from these basic and important points to the strange idea that geology
is "most of the time . . . just guessing", as you put it.
Some things in geology -- like the timing of volcanic eruptions -- involve a
lot of guesswork. Others don't, and so shouldn't be rejected without strong
countervailing reasons.