i think now is the time to hold because the sell time is past if you wanted to profit from the fall. now you should sit back and watch.
Bitcoin going down 100% = Bitcoin going to 0
Of course won't happen, even if does, won't be in a sudden drop.
I would wait some more time before doing the next move
I think this is a flawed logic, when the day comes that bitcoin is rendered absolete, the price fall will be very sudden, I think within 24 hours, as everyone tries to sell off their bitcoin, again this is my view

well something like bitcoin is not going to become obsolete in one day it is going to take a long time if it were to happen.