People with aphantasia can use the techniques. There are some discussions about it here, including one member with aphantasia who can memorize dozens of random

People with aphantasia can use the techniques. There are some discussions about it here, including one member with aphantasia who can memorize dozens of random digits in less than 60 seconds. https://forum.artofmemory.com/tag/aphantasia https://forum.artofmemory.com/tag/aphantasia