Bitcoin is currently in a convergence oscillation + inflection point window, with intensified disagreements between bulls and bears, predominantly characterized by high-level consolidation and cautious sentiment. In the short term, influenced by macro sentiment and capital flow rhythms, prices are engaged in repeated tug-of-war within key zones, with limited rebound strength and supported downside. The 4-hour Bollinger Bands are contracting, moving averages are flattening, which is a typical accumulation structure before inflection, dominated by range-bound oscillation. On rebounds to support levels, consider going long on dips; on rallies facing pressure, consider shorting. Bitcoin: short from 71500 to 72000, watch 69000. Ethereum: short from 2190 to 2220, watch 2100.