To expand on @will_is_myth, it's not the time that restricts the learning process, but it's understanding what went wrong. @tpr showed a game where you made a simple, tactical mistake. Until someone (including yourself) shows you this mistake, and you make an effort to correct it, you will continue to make the same mistake.
Strange that people always say that repetition of good behavior is good (for learning), but never seem to say that the repetition of bad behavior is bad.
Strange that people always say that repetition of good behavior is good (for learning), but never seem to say that the repetition of bad behavior is bad.