News: Bitcoin experienced a significant downturn on February 28th, falling to its lowest point in three weeks, around $43,000. This decline occurred despite ongoing positive developments in institutional adoption, such as MicroStrategy's increased debt offering for Bitcoin and Mastercard's plans to support crypto payments. Concerns over rising U.S. Treasury yields and potential Federal Reserve monetary tightening appear to be overshadowing these bullish catalysts in the short term, leading to a broad market sell-off including Ether. However, long-term indicators remain positive with continued infrastructure development and institutional interest.

Market Probabilities: 
Bull 30% | Base 40% | Bear 30%

Recommendations: 
Short-term: HOLD
Long-term: BUY
{"sentiment": "neutral", "price_direction": "up", "impact_strength": "high", "timeframe": "medium_term", "confidence": 0.5, "key_reason": "MicroStrategy's repeated and increasing debt offerings to buy Bitcoin signal strong institutional co"}