pretty automatic, turn out to be tasks that compete. So, if you’re walking without talking, as soon as you start talking, you’ll see that the pace of your walk changes, and you may be more likely to trip. Anything that is depending on attention to be able to process the world is susceptible to dual-task interference, or problems associated with multitasking. A simple example we give is saying the letters of the alphabet: A, B, C, D, E, or counting, one, two, three, four, five. Those are easy. But if you try and combine them and do something like, A1, 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