This is a known fact if the price goes up it will surely go down. What happens if the price of Bitcoin falls to $1000 in 2018, will this be considered as a Worst Case Scenario or something else?
the worst case scenario for bitcoins is when the government is banning cryptocurrency on its country, in this way people will not be able to invest and bitcoins might die in the future.
Yeah that's even worse than whales dumping to 1k, since we can still expect a good comeback. Illegalization of crypto may very well put an end to this market and to all our crypto dreams.