> I think the difference is that some of us need a little more structure. By providing a method and a repetitive activity, by the 21st day or so (3 weeks they s

> I think the difference is that some of us need a little more structure. By providing a method and a repetitive activity, by the 21st day or so (3 weeks they say), it will become habit. After that point, making a point of solving problems for a particular purpose everyday will be much easier, and you'll be making more progress. Yep, I agree. As long as you are able to find problems to solve. Personally, this doesn't work for me because I am not able to come up with problems unless the present themselves in something I'm working on. I can read 100 books on a subject, but if I can't apply the knowledge or imagine how I can apply it, it doesn't stick. Just different ways of learning, I guess.