Instead of responding by reflex, we often respond to our mental representation of a thing. That’s an extra step. But it might, in the end, be more efficient. “The organism can just think: there is a large object ahead that is moving relatively fast, and the best thing to do when faced with oncoming fast-moving large objects is to get out of their way. In this way, the organism does not have to store a large number of behavioural dispositions (‘red bicycle ahead → move to the side’; ‘blue motorcycle ahead → move to the side’ etc), but it can just reason about what the right answer is.”