He believes in that. Bitcoin community is growing, more people want to be involved, price can rise due high demand anytime. To me this post is nice cause there are people that believe in bitcoin even in times when price is dropping, message should be clear, don`t sell now if you don`t really have to.
To me optimistic predictions are not shocking, everything is possible with bitcoins. This year will be remembered as bad year just cause price in December last year was really high, mostly people think about that drop, but actually good things happen for bitcoin, a lot if you read whats happening, maybe that doesn`t affect price now, but it will in future, so price of 100,000$ for 1 bitcoin in next 16 months is possible.