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I don't know though, I mean as average investor, the money that I invested could be my emergency fund as well.
It is a very bad practice to invest into bitcoin with your emergency income or fail to build one alongside your accumulation journey. It places your investment at risk of being tampered in the face of real emergencies. Emergency funds are built only to attend to real emergencies and no other purpose.
No matter how aggressive an investor want be in accumulating bitcoin, he or she should never make the mistake of accumulating Bitcoin with your emergency fund, it will put your bitcoin investment in danger and you may end selling off your investment looses when emergency arise and there is no emergency fund to handle that emergency, emergency fund is supposed to be for only emergencies and not for accumulating bitcoin it's investing mistake.