B2, C3, D4, you’ll quickly find that that becomes difficult, you start to forget where you are. And those are two super-well-learned tasks that you can do by themselves. But when you try and mix them together, you get all jumbled. As soon as you start to multitask, performance on both of the tasks start to degrade. Now, how much of that is a function of attempting to multitask versus the fact that we learn habits and patterns and memorize things that become rote, that we don’t need to engage our cognitive process at all? You can become automatic at certain aspects of performance. When your performance is habitual or automatic, it is less dependent on attention. So, a lot of things kind of just happen without consciously