The trick is to train our brains to go into what we call “L-squared mode”—we have to tell it to look and listen simultaneously. We have to say, “Brain, for the next few seconds, you’re going to process in both the visual and auditory channels what’s being communicated to me.” Your brain will not like you for this. In fact, your brain will win the argument. After a period of time, your brain will say, “I’ve had enough,” and it will default you to one or the other. But with practice, in those few moments following the stimulus you’ll be able to condition your brain to go into L-squared mode.
