I have aphantasia but managed to follow the moves in the video and notice the pin. Aphantasia is the inability to create mental images in one's mind. You can check for yourself if you have aphantasia by [imaging a ball on a table](https://www.reddit.com/r/Aphantasia/comments/cpwimq/ball_on_a_table_visualization_experiment/). Do you have aphantasia? Can you play blind chess?