It is just an imagination because that is not gonna happen if we the situations right now, a coin would only drop its price to such a big extent if it is not used and bought by any user but that is not the case with bitcoin, but the community is increasing day by day and investors are investing more and more into it so how come it can drop its price so drastically?
Yes, it is just a imagination but it's not impossible. I mean maybe it's not will dropped on 1$ but there can be a time when 1btc=50$ or less than 50$. It can be happen for many reason such as hacking. So, if bitcoin price down like that I will buy as more as btc I can so that when it's price will increase I can make profit. I believe and also hope that bitcoin price may not down like that but nothing is impossible.