in my opinion , bitcoin for the following reasons ,come back from 40,000$:
1.Moving average 50 probably support price 2.the area is 61.8% fibo retracement 3.the previous supported line
and when the price touch this zone we have a bullish divergence in MACD in daily time frame if this area can not resist ,we have to wait for bitcoin 29,000$ because in weekly time frame probably bitcoin touch Moving Average 20