Why do we give value to the currency represented by a piece of paper while other pieces of paper are going to trash? The currency concept is based on mutual trust between an issuing nation and operators. If people do not believe that the money issued has value, it stops being accepted and becomes just a rejected paper.

The French economist Bruno Théret comments that in 2002, when the euro would replace currencies such as the German mark, the French franc, the Spanish peseta, the Italian lira, the Portuguese escudo, among others; Europe did not melt gold bars and converted them into the new currency: it just created a new simbol for that population.

For the Israeli historian Harari, these are imagined realities. “Unlike a lie, an imagined reality is something that everyone believes in and, while this shared belief persists, it exerts influence in the world,” Harari considers.

We have, therefore, in the world of economics, an example of how the constructions that start from the other, certainly subjective, affect the self. The considerations here are a way of looking at the relationships between the self and the other that guide the Agora theory.