maybe end of 2015 bitcoin dead
What? End of 2015? It is already 2017 but it is alive and pumping. You might got your predictions wrong brother. Bitcoin will not be dead if a lot of people are still using it, always remember the law. Think in the other side of perspectives not just yours.
The main reason is this, that how can we conclude that bitcoin will die despite people are becoming members of bitcoin in groups. I think it is absolutely wrong prediction that bitcoin will completely kick out from market. For a little bit down in the price of bitcoin cannot be caused demolishing of bitcoin forever. It is just a propaganda against bitcoin so dont believe on such kind of predictions.
Of course not! Bitcoin is still alive until now! I think because people needs internet nowadays for faster transactions, paying bills, etc. That's why more and more people are using it. And therefore it will not die.
Law of supply and demand will always be the answer. If people are no longer using it, that's the time bitcoin will die but as I see now, more and more people are using it.