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HOW TO PREDICT THE FUTURE
It's a basic law of this dynamic, ever-changing universe that there's no such thing as something "staying the same." Things are either expanding or contracting, increasing or decreasing, getting better or getting worse. Even the metal or hard plastic computer or sheet of paper on which you are reading these words, as solid and as stable as they appear are all slowly decaying and deteriorating. Come back in a few dozen years, and you'll see the effects of decay over time. If you know this, then you can look at everything from business phenomena to romantic relationships a little bit differently, and can perform what some might consider fortune-telling simply by asking, "where is this heading?"
Every business, every situation, every relationship is either getting better or getting worse, growing or shrinking, going up or heading downhill. Therefore, as long as you can honestly a**ess what you observe or experience over a given time frame, you can "predict" where something is heading and take any evasive or remedial actions as necessary. There are even specific formulas(1) you can use to reverse or stabilize a declining trend, improve a flat trend, improve a rising trend, or greatly improve an already stellar trend for any observable statistic like "sales" for instance.
Now having said that, let's examine some observable facts and trends within the music industry that you can use to predict the future, or at least prepare and position yourself for success regardless of what specifically happens.