Safety can not come to the bitcoin investor. Nothing and absolutely safe. Everything has its own risk, its danger. No one knows what tomorrow will be like. Only know that if we do nothing then there is no danger nor money
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When did you find an investment which does not have risk? Maybe, you may put it on the banks and earn but it is called savings. The more risk we have in our investment, the more we gain our profits. You say that bitcoin is dangerous or harmful buy you must say also how it works for the people and how it change others life.
I agree with you, who ever took risk and investment in starting are enjoying today, no one becomes millionaire overnight it requires long term investment plan. That is why even today investing in Bitcoin is good as in future you can not say what price it will reach but you will be in profit. It wont be dead as now lot of investment and big institutions are involved, they wont let die.