Well, @metivier I am curious to know what you have to say about my post on
https://forum.artofmemory.com/t/modified-photographic-speed-reading-combined-with-a-memory-technique-and-a-brain-exercise-with-results/52179/23 as it a combination of a brain excercise and a memory technique along with speed reading,
And in my post I had added a sentence
which I heard in of your videos in your Magnetic Memory YouTube Channel and also my second post on is-it-possible-to-gain-the-method-of-loci-synthesia-edit-yes-it-is-see-virtual-memory-palaces-along-with-text
which contains a method by which a person can get The Method of Loci Synthesia by which a person can see Virtual Memory Palaces of their choice with text just like how in some forms of synthesia people can see colors along with text and I also believe that this type of synthesia can also help in quick Multiplication,Division and Factorisation and maybe diagrams can be added to the locations in those memory palaces to help students to understand the rules of solving some if not all word problems before solving them ,
and I think that this Synthesia can be unlearnt and maybe aquired by making catagorises of aassociations and I think that the article below on Quora contains a lot of valuable information,Specially on getting synthesia through association and maybe even The Method of Loci Synthesia can be naturally developed without having to use any software or a thing,
and @metivier can you give me some advice on how can I improve the two methods which I have posted above and you may also be intrested in an adaption on the method of loci for every day use and also in doubling your speed of recall.