According to @charliebilello, selling during bear markets and waiting for the coast to be clear often results in missing many of the best up-days and largest gains, a pattern he notes occurred again in 2025 (source: @charliebilello on X, Dec 8, 2025; video: piped.video/watch?v=LutENzRsYL0&t=1075s). For crypto portfolios, this implies traders should avoid full exits and consider keeping core exposure or using staged re-entries to capture sharp rebound days that can drive outsized returns in volatile assets like BTC and ETH (source: @charliebilello on X, Dec 8, 2025; video: piped.video/watch?v=LutENzRsYL0&t=1075s). Practical tactics aligned with this guidance include dollar-cost averaging, predefined buy triggers, and partial hedging to manage drawdowns without forfeiting upside participation during bear-to-bull transitions (source: @charliebilello on X, Dec 8, 2025; video: piped.video/watch?v=LutENzRsYL0&t=1075s).