Hi there!
I would like to ask you whether you know more about a technique regarding memorization of abstract images which involves ordering of the images according to their brightness or something. Such approach is doable with a 3 digit system, since one row could be encoded with 5! (five factorial) possibilities, just 120 unique images.
As far as I am not mistaken, he uses such approach. I even saw a facebook post concerning this technique, but to my dismay, I cannot find it anymore.
If you have any idea about this, please, share it.
Thanks.
Regads,
Milan.