I find it hard to take seriously anyone who claims that money is fake if it's not tied to the gold standard. That's not to say that a big crash isn't a possibility, of course. Buying gold might help an individual weather the storm--or it might be a foolish lost opportunity with some other investment. Or maybe cash under the mattress is the best bet till the market bottoms out.
J. K. Galbraith said "The only function of economic forecasting is to make astrology look respectable."