According to reports on March 15, Bitcoin has risen 2.913% in the past 24 hours, with a current price of $84,142. However, a decline in consumer confidence may herald a weakening of economic activity, which may have an impact on demand for risky assets such as Bitcoin. Analysts suggest: BTC price encountered resistance between $84,000 and $85,000, successfully defended the key support level of $75,000. If it can break through the $85,000 mark, it may move further towards $90,000. Investors should pay close attention to market liquidity and institutional capital flows. Long-term investors can consider building positions in batches when BTC pulls back to the range of US$75,000 to US$78,000. This range has a strong supportive effect.