To clarify, I meant that we would inevitably do so when we live on Mars. But good observation - it is certainly not inevitable overall at this point in time.
Sure, but "given that we succeed, we will inevitably know more than today" is pretty tautological. I could say the same for winning a chess match against Magnus Carlsen.
If success is a premise, and learning is the conclusion, then it is not tautological. But yes, while not the only possible, it is a very likely result.
And tautologically or not, it is important to recognize the value of how much we could learn from a Mars colony that can't be learned on Earth, in LEO, or on the Moon.