Every market has ups and downs, so all predictions should be judged by how accurate they are in terms of date and magnitude, otherwise all predictions will become true eventually. People were expecting a stock market crash for years now, but instead it showed a great performance, so people who are constantly bearish are not a good source for investment advices. But the most interesting question is how would Bitcoin react to a crash - will it soar because it's usually viewed as a hedge, or would it fall together with stocks?