Web 3 isn't a scam, it is the evolution of the web which we all know is the primary tool used by billions of people to share, read, and write information to interact with other people via the internet.[1]  But sadly web3 has been the place of scammers to do their stuff which often does their stuff in exploiting  Defi, NFT,  and the metaverse.


It was stated the difference in this explanation

"Blockchain is a novel system for generating consensus among network participants without a governing authority. Web3, meanwhile, is the decentralized web—where apps, online services, even finance—no longer need a centralized authority."[2]

It was also stated that Blockchain is the backbone of web3 that redefines the data structures in the backend of the Web, now that we live in a connected world[3]

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[1] https://medium.com/@vivekmadurai/web-evolution-from-1-0-to-3-0-e84f2c06739
[2] https://brave.com/web3/intro-to-blockchain/#:~:text=As%20you've%20seen%2C%20blockchain,longer%20need%20a%20centralized%20authority.
[3] https://blockchainhub.net/web3-decentralized-web/#:~:text=Blockchain%2C%20as%20the%20backbone%20of,settle%20agreements%20over%20the%20Web.