The current prices at any given time, how do you know if they are going to correct or are already corrected?
Like the prices atm.
This is the work of Technical Analysis, to know the possible trend or the next price range of a specific coins/tokens. Indicators can be use to tell if its going to up or down, either overbought or already oversold. In TA you must consider everything, one indicator that can be backed-up by other indicators, this can be more effective.
Traders have to understand the function of indicators, this is very helpful and the real answer to the question of OP though it may not 100% guaranteed, but most of the time it follows the trend. The current price corrections is an indication that we failed to sustain the momentum and failed to break the resistance, its normal fo see such corrections if you just look at history of the price.