5.5 What are the Current Limits of Blockchain?

Blockchain technologies have structural limits.

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LIMITS

• We have seen that blockchain technologies have structural limits. They cannot be considered as a basis for complete trust and confidence, even narrowed down to trust. Indeed, organizational issues relating to power dynamics between actors and user appropriation as well as technical factors make studying the actual scope of this technology very complex. However, they indicate once more that mere transparency does not necessarily come with complete trust and an adequate protection of personal data
• Let us finally remind here that Public Key Infrastructures (PKI) were once similarly presented as a revolutionary, trust-inducing technology, before we came to share an understanding of its limits.
• Therefore, and as is the case with labels in a broader sense, using a blockchain is a guarantee of certain properties, but should be considered as a way to induce or suggest user trust by emphasizing the appropriate features of this technology.