As investors rush to buy cryptocurrencies, they are quickly creating a bubble. Bitcoin has gained a lot of attention in recent months and as a result many other cryptocurrencies have spiked significantly. While this is a good thing for those who purchased them when they hit their peak, it can also be seen as a sign of market manipulation by those who were selling off and buying back into an already inflated market at the peak. This is more likely to cause an increase in the price than anything else and will likely lead to an eventual decline rather than a long term upward trend.