is bitcoin going to go down to $0.00USD?
IMO, No.
is bitcoin going to literally tank and go down to zero?
Possible but No.
if bitcoin goes down to $0, is that the end of it? or could it come back after that?
Bitcoin came from zero and now it has value so if it will go back to zero then it may repeat.
if bitcoin goes down to $0 will there be other coins that rise up in it's place?
Crypto market is dead.
how far down are you thinking this bear run will take bitcoin? $1,000? 500? Less?
$3,000 is sustainable.