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.