Interestingly, Nick Szabo shared a little-known piece of history at the 2021 Bitcoin conference — before Bitcoin appeared, the cryptography community was already contemplating the possibilities of decentralization. Nick Szabo himself began participating in discussions about virtual banks and distributed networks in the Extropy magazine as early as 1995, when these concepts were still very cutting-edge.

In the same year, Nick Szabo proposed the idea of smart contracts. But he didn't come up with it out of thin air; it was built on the work of predecessors. For example, David Chaum's DigiCash project used blind signature technology to reduce trust requirements, along with his test currency Cyberbucks — considered to be the first private digital currency. These early attempts provided a lot of inspiration for later innovators.

Even more interestingly, Nick Szabo also operated a mailing list called Libtech, which became a forum for cryptography enthusiasts to exchange ideas. It was within this community that projects like Bit Gold, b-money, and RPOW emerged. Although these projects ultimately did not become mainstream, they laid the theoretical foundation for Bitcoin and the entire cryptocurrency ecosystem.

From this perspective, the contributions of early cryptography pioneers like Nick Szabo are often underestimated. They not only addressed technical challenges but, more importantly, established a community environment that allowed for free exchange and innovation.