"Trend" is the core of technical analysis. The entire significance of studying price charts is to reveal a trend at an early stage of its development in a timely and accurate manner, in order to achieve the goal of trading in the direction of the trend.
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In fact, the essence of technical analysis is to follow the trend, that is, to determine and follow the established trend. From "prices move with the trend" it can be inferred that for an established trend, the next step is often to continue evolving in the direction of the existing trend, with a low probability of reversing direction. This is, of course, also an application of Newton's law of inertia, which can be rephrased: the current trend will continue until it reverses direction.
It is important to emphasize: steadfastly follow an established trend until there are signs of reversal.