The thing is that if you don't remember later what you've read/studied, why make the effort? Anyway, I also thing «so what?». Even if you think you've forgotte

The thing is that if you don't remember later what you've read/studied, why make the effort? Anyway, I also thing «so what?». Even if you think you've forgotten, things do stay in the head, and next time you pick up the subject everything is quicker. Not to mention when learning in one place helps you in others.