You raise valid points about the differences between blockchain and fusion energy, as well as the potential shortcomings of blockchain technology compared to traditional databases and financial systems.

It's true that blockchain technology is often touted as a distributed and transparent system, but in practice, it may not fully live up to those expectations today. However, there are specific use cases where blockchain technology offers unique advantages over traditional systems and that’s only going to improve.

For instance, in countries with unstable currencies or unreliable banking systems, cryptocurrencies can provide an alternative means of storing and transferring wealth. Additionally, blockchain has the potential to enable new business models and applications, such as decentralized finance (DeFi), supply chain tracking, and digital identity management, which may not be feasible with traditional systems.

Regarding the comparison to Visa, cryptocurrencies do offer some unique features that may be desirable to certain users. For example, cryptocurrencies can provide increased privacy, lower transaction fees for cross-border transfers, and a decentralized platform resistant to censorship.

However, as you pointed out, cryptocurrencies often lack some of the consumer protections and guarantees provided by traditional financial systems, such as fraud protection and reversibility of transactions. It's essential to consider both the advantages and disadvantages of each system and recognize that the ideal solution may vary depending on individual needs and specific use cases.