I believe that BTC price will set a bottom before a relatively strong rebound (but still does not exceed 13k8) and start the downward fluctuation until it has accumulated enough, then the uptrend will start again. (Histogram MACD candlestick will plunge, then get back to 0 and plunge to negative value again. When it gets back to 0, the price will increase most dramatically). It is highly recommended that you stay calm and invest a reasonable amount of capital.
I wouldn't be so sure about this thus i have to expect less from all of the speculation, sudden news might change the outcome to every speculative form that you are talking. But i agree that we should stay calm while telling them to invest for a reasonable amount, why not tell them to invest more on altcoin rather on Bitcoin itself. By doing this, they could diversify it easily rather than to Bitcoin alone.