We tend to forget easily because that's how we evolved, not because we were meant or made to. And just because we evolved this way doesn't mean it's optimal.
I'm having a bit of a hard time assigning meaning to your first sentence. If we evolved that way, there's no "meant" in evidence, and vice-versa.
And as for optimality, be careful with statements like that (and what you wish for). I think it ceases to be an optimality problem when it's followed by "if everything were completely different."
Comments
We tend to forget easily because that's how we evolved, not because we were meant or made to. And just because we evolved this way doesn't mean it's optimal.
I'm having a bit of a hard time assigning meaning to your first sentence. If we evolved that way, there's no "meant" in evidence, and vice-versa.
And as for optimality, be careful with statements like that (and what you wish for). I think it ceases to be an optimality problem when it's followed by "if everything were completely different."