Mental visualization at the neural level is identical to real-world events but is not as effective for learning and improving performance.

“so in telling you this what I'm saying is that mental visualization at the neural level is identical to real world events so when you've heard that when we imagine something it's identical in terms of our brain's experience of it and our body's experience of it as when we actually experience something that is true at the neural level however when it comes to learning and improving performance in the cognitive or physical domain they are not equivalent”