What are the factors that make these people successful in their investments?
Yes we can totally make money from money bitcoins and all the other currency can do that if and only if they are successful like bitcoins. How to make money from money? Buy bitcoins when a lower price, after a weeks or a month the bitcoins will pump and our money will also pump so we make money from money and that is what we called a passive income. You can always invest on bitcoins if you wanted that to happen. Just do not get afraid when the value of it drops because the valaue will immediately rise after a weeks trust me.