now a lot of investors are investing in bitcoin, therefore bitcoin has increased very rapidly if bitcoin decreased what should be done? whether the investors will lose? 
Investors will not lose if the investor does not sell Bitcoin at a low price. Unless the price falls again, the investor will sell Bitcoinnya, it is certain he will lose in large amounts. What we need to do if the price of Bitcoin decreases is just to calm down, not panic, not to sell its Bitcoin, and keep the Bitcoin we hold.