"Measuring the rise" is a tool I often use in trend markets. The principle is actually not complicated; it is to use the amplitude of the previous round of rise to estimate where the next segment of the market might go.

Why is it effective? Because in a strong market trend, the market often repeats at a similar rhythm - rising for a while, then pulling back, and then rising again. When the rhythm is consistent, you can refer to the strength of the "previous segment" to estimate the space for the next segment.

How to use?

The first step is to identify a complete pump (for example, from a previous low to a previous high), which is the "reference segment."

The second step is to observe where it stops retracing, which is the "place to prepare for another launch." Typically, this is at moving average support, a pullback to previous highs, or a retracement within the trend structure.

In the third step, copy the rise from the first segment to this new low point, and you can roughly estimate the target level for the next segment.

Remember, this is not a prediction, but a reasonable "take-profit reference" for the strategy.
The real key is: entry must be reasonable, stop-loss must be clear, and the target for rise is just "expectation management," not a reason for you to go all in.