[theshadow]

It's possible that he/she is already familiar with the material but is reading it as review, in which case 10 days sounds more than reasonable.

[denzil_correa]

True. As tsahyt puts it,

> it's always good to review things one has already learned. For me this usually leads to insights I haven't had before and a deeper understanding. Learnings seems to be an iterative process.

This is my primary motivation.