True, high risk produces high rewards. In investing, of course you have to dare to risk the amount of money spent. Before you dare to spend capital or invest, you must understand about the instrument and what risks might occur. So you can convince yourself that business or investment will produce the desired results.
When you are dealing with bitcoin a higher amount of risk is always involved in it as being a volatile currency, its price never gets stable. But being a potential coin the profit associated with it is also very high. So, if invested in a right way, you'll always be having a great amount of profit...