Why Is This Method so Effective?

It is a phenomenon long known and researched in various universities that learning is especially effective if you repeat learning content in the evening shortly before going to sleep. The result: you better remember what you learned in the morning!

Repetition of the procedure guarantees imprinting of the information. 

Repetition can become memory, as suggested by Professor Born in the documentary film: “Erinnerungen: Wie wir uns irren” – (2018; 35.05 sec.).

False memories solidify in the brain, similarly to real, experienced memories  and are based on similar neuronal foundations.

Source: Kühnel, S. & Markowitsch, H. J. (2009). Falsche Erinnerungen. Heidelberg: Spectrum.