¿Will the bitcoin be the currency (or the new disappointment) of the future?

The future for some, the last bubble for others. The bitcoin, the most famous cryptocurrency in the world, began trading on Sunday in the futures market in Chicago. And the Nasdaq will come later. "Until recently it was a militant value for those who want a monetary utopia outside the power of the states," economist José Moisés Martín Carretero recently said in 20 minutes. What is behind bitcoin?