Everything starts with a panic sell or even panic buy but sooner or later there will be a correction to the price so there is no worry about that, the only thing that needs to worry about is when will bitcoin be $100 and what is the side effect if bitcoin really become $100. It could create panic since it will be losing 75 % of its current value
At price 100$ bitcoin will be dead,miners will turn of the lights,if will gooes 100$ will goes 20$
when the bitcoin price fell to $100
I think everyone will think that this is an opportunity to buy and make a profit
This certainly would make a great demand then the price will go up
at 20 is certainly died, because, first the sentiment would make it died, see other altcoin, no one is buying those just because they are cheap, this is a common misconception
the latter is because the network will be very vulnerable, because any farm right there can attack it easily at that point, since the diff would be very low at $20 per coin
only those with free electricity will support the network, and they are the minority, i'm sure free electricity not even reach 1 peta