Bitcoin is currently down about 17% from the peak and other popular cryptocurrency such as Ethereum and Litecoin also down. It is because there us an unusual and sharp rise in those cryptocurrency and there is overestimated market value, so it now falls. I think it is good to have adjustment of the market value since if the price continue to rise, it will diagnose a bigger and bigger bubble.I think cryptocurrency market has a very large potential since it is a revolutionary that will change future structure of global economy. The downing price also provide a buying opportunity to people but people need to consider whether they can afford these high risk assets and the it may have a chance of cryptocurrency to worth nothing.