The Cascade Effect

Have you ever found yourself facing an obstacle, with little hope of overcoming it, when all of a sudden, a breakthrough happens, leading to even more successes?  I call this "the cascade effect."  I define "cascade" as "the moment when facing a difficult part of a puzzle or game, when a breakthrough occurs, leading to more progress and/or completion of said puzzle or game."  I have also extended this into real life events.  I developed this term many years ago.  I was trying to solve a type of puzzle I wasn't that familiar with.  It was part of a series of interconnected puzzles that lead to an overall solution.  I couldn't skip it, but I did't want to look at the answers either.  It was a grid where all the words were down clues, with some overlapping of the answers.  There was just no way for me to get ahead, until I figured out an answer.  This led to more answers and, ultimately, the puzzle and the overall solution.  The puzzle was called something like 'waterfalls", so cascade seemed like a good term for what happened.  I have since used the term for other tricky moments while solving puzzles or trying to win a game.  I also find it useful in real life situations.  For example, I recently got into an online graduate school program.  I had to wait until I could pay my tuition before getting all eighteen books I needed for my classes (thirteen novels and five textbooks).  There was no easy way I could order all of them through my university bookstore.  It would put have been too much.  Fortunately, I have other options,  I am on very good terms with two local library systems (I have been a patron of one of them since I was five or so).  I have been able to set up a way to check out most of my novels through them, without having to overly worry about being overdue.  It is also fortunate that I currently own a bookstore of my own.  Through my two primary distributors, I am able to order one of my textbooks, as wells some more of my novels, at a lower cost to me.  That still left a few books, noticeably most of my textbooks.  I am going through a different, closer university bookstore for three books.  It will be easier to re-sell them this way.  That left one novel and two textbooks that I am ordering through my own university's bookstore.  Both of the textbooks are hard to get (one is out-of-print in preparation for a new edition), and the remaining novel is difficult to find, as well.  Ultimately, I should have access to all my books before classes start next Monday.  At least that is the plan.  Delivery schedules might make some things hard, but I should be able to manage. Here's hoping I haven't made any mistakes.