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Specific visions for Web3 differ, and the term has been described by Olga Kharif as "hazy", but they revolve around the idea of decentralization and often incorporate blockchain technologies, such as various cryptocurrencies and non-fungible tokens (NFTs). Kharif has described Web3 as an idea that "would build financial assets, in the form of tokens, into the inner workings of almost anything you do online". A policy brief published by the Bennett Institute for Public Policy at the University of Cambridge defined Web3 as "the putative next generation of the web's technical, legal, and payments infrastructure—including blockchain, smart contracts and cryptocurrencies." According to Liu, Zhuotao, et al (2021), three fundamental architectural enablers of Web3 were identified as a combination of decentralized or federated platforms, secured interoperability, and verifiable computing through distributed ledger technologies.