The world of crypto currency is just beginning, and it has a long way to go. The general consensus is that the sector will continue to grow, especially its two leaders - bitcoin and ethereum. Moreover, the prospects of the ethereum look better. Optimists say that in the near future ETH will bypass the main and the first crypto coin. However, there are a number of problems that need to be addressed. Skeptics are worried that these problems will have a negative impact on cryptographics in general.