[1maginary]

Do you mean the short-term memory needed to apply the commutators or the conjugates? Otherwise you only really need to "memorize" the steps of the method.

I learned this method around 10 years ago, and I can still solve the cube without applying any memorized algorithms because of it. It really is the only fun way for me to solve the cube after all this time.

[habibur]

This. I used to forget the algos whenever I didn't touch the cube for 6 months. Then learnt Ryan's method. Picked up the cube 4 months later and found I can still solve it.