I would define crash as anything below $3,000. We are a long, long way from that. Bitcoin is already stabilizing and has refused to go below $7,000. The consensus is that we could make a move to $10k anytime soon.
IMO the price is already treading dangerous levels, it looks like it can break and crash any moment. Hopefully, the strong demand we have right now would be sustained.
Many have been surprise with bitcoin drops due to segwit cancellation. But as usual it is normal in bitcoin movement in the exchange price suddenly drops. Yet hope this is temporary that btc will recovering.