A problem was born. You see, up to this point, trust was an essential part of digital transactions. We need trust to avoid transaction reversals and minimized fraud. Furthermore, to build trust, merchants and banks require even more personal information from customers. 

To combat this issue, Satoshi introduced Bitcoin as the first digital representation of value. No participant is able to copy, double-spend coins, or reverse transactions. People would be able to send this digital currency directly to one another, without the use of a middleman. 

And instead of relying on trust, Bitcoin relies on computer calculations to make digital transactions safe and peer to peer reliant.

Ici ils parlent de la confiance dans les transactions, dans le fait qu’on ne peut rouler personne par de fausses transactions.
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Mais ils ne parlent du Bitcoin que comme d’une monnaie et non d’une valeur propre, car la question c’est sur quoi est adossé le Bitcoin ? Qu’est-ce qui garanti sa valeur lorsqu’il vaut 30000 dollars ou 100 dollars ?