He can not know about the future even he has technical skills to use on chain data for analysis, only market makers can know their manipulation plans that also affected by policies at national and global scale on this industry. Even some other things beyond Bitcoin and cryptocurrency can affect this market like national, regional or global war.

Many things are beyond on chain data so that the prediction of Ki Young Ju is purely speculation with some data backed behind. If you don't want to hold bitcoin too long, you can consider to take profit starting in Q1 or Q2 2025 and do it till Q3, Q4 2025 to exit the market before bear market.