I think it would mean that changing a “default” response requires deliberate effort to generate the neural pathways that let you behave otherwise. There’s an illusion of choice in your consciousness, but the energy required to make deliberate choices is wasteful, so if you turn left at some corner 100 times, you won’t need to exert much energy to decide to turn left, even though you could turn right every time and probably needed to use your deliberative consciousness to specifically choose to turn left the first time.