【Vitalik: Encryption is not a technology of "efficiency" but a technology for building a digital castle】 Golden Finance reported live that Ethereum founder Vitalik delivered a keynote speech titled "What Excites Me About the Next Decade" at Token2049 held on September 18. In his speech, Vitalik said that encryption is not a technology about "efficiency", but digital concrete. Blockchain and crypto-punk technologies such as mixnet, Tor, and BitTorrent have the same origin, but blockchain is also different. Blockchain creates an extremely stable and lasting structure, allowing the Internet to not only bypass the weak links in the old structure, but also effectively build better alternatives. This digital concrete is to build a digital castle in the sky.