The thing is, people are also saying at the beginning of this year that 5k is nearly impossible as well this 2017. That bitcoin can't go tbat high in sucb a short time. Well guess what, we've consistently breached 6k and we still have 2 months to go this year. I'm not saying it's going to happen but i'm belieiving it can
For now we could just only say it is too impossible, and even in the past they have said it was really impossible it would reach that worth we have right now, but as you can see it did happen right before our eyes, and yet there ar so many speculations to what might the future of bitcoin will be, some have said it will pump up, some also said it will drop, no one is certain about those predictions but it has a great potential to get high price.