Impossible Bitcoin will never be worthless the real question you should be asking is wether Fiat currencies will be worthless
Fiat and bitcoin both are not going worthless, both have on position. Actually, it is common thing, when bitcoin price is going to down then people think about bitcoin that bitcoin is going worthless. In my view, within few months when bitcoin will take position, then we forget this thing that bitcoin was worthless.
Only those use to say that who are not sure about the abilities of the bitcoin, it has more value for me and it will remain number one forever. We should invest with trust and faith on increasing ability of bitcoin, for me bitcoin will gain even more value as investors are investing to gain profit, never trust those fake news just keep holding and you will see the actual worth of bitcoin.