For someone who doesn’t see a lot of possibilities, sometimes a choice is easy — you just choose the one that looks obvious.
But for someone who has an abundance of intelligence, there are many more doors than that. And choosing can seem impossible. So this person starts creating a decision tree in their mind: “If I choose this, then this might happen, which means I need to decide if I want this, and then that might happen … but then this other option brings three more decisions …”