On a macro timeframe, whenever the Hash Ribbons indicator flashes for Bitcoin, it is followed by a run up. You can see this on multiple occasions in the past several years of Bitcoin's history.
What is the Hash Ribbons indicator?
This indicator tries to identify periods where Bitcoin miners are in distress and may be capitulating. These periods can occur when the price of BTC is at major lows, and may therefore present a good opportunity to buy the dip.