Bitcoin is like a gold rush that began in the middle of the XIX century. Where the prey was in great volumes, which caused an over-interest. And in the case of bitcoin, then there is a faster price increase.
Soon at around the $ 10 000 people will start to fix profit and will start a huge rollback. Under the pressure of other investors will also close the positions. And we may get a small panic in the cryptocurrency market. And the gold rush until the time stop.