Some 700,000 people deposited their savings in so-called preferred shares, a banking product that was sold to citizens with no financial experience who were not well informed of the risks. They believed that they were exchanging a deposit for another with more profitability without knowing that it was not guaranteed in case of bankruptcy or problems. The preferred ones, which neither give the right to a share of capital nor the right to vote in the shareholders' meeting of a bank, have a return associated with the profits that the entity has. A poisoned product with which many banks and savings banks, many of which no longer exist, wanted to finance themselves when they began to drown due to the toxic excess of real estate assets in their investment portfolio. Then came the bankruptcy of Lehman Brothers, the Spanish real estate crisis and the rest is history of how hundreds of thousands of families lost everything they had forever.

Those affected cannot reproach themselves for anything: they trusted their bank, in the box where they had had payrolls and receipts domiciled for decades. Never again will the trust that was then had in entities that prided themselves on proximity, security and understanding with the client ever return.

But the trauma of that disaster does not help us understand why the children and grandchildren of that generation of those affected have invested in cryptocurrencies to obtain more profitability or to get rich. They believe and trust financial influencers, youtubers and a series of characters who from the networks assure that it is easy and that fear is for cowards. With methods that border on the capture used by religious sects, they develop a cryptovocabulary that believers repeat like parrots.

"It is a complex and high-risk instrument that can generate profitability, but also losses in the capital invested," defined the CNMV for preferred companies. Cryptocurrencies multiply the complexity and risk tenfold. His assessment is based on many investors doing like you and not jumping out the window with the first wave. After this week's tsunami over the sector, we begin to see many naive people clinging to the raft of the Medusa.