Elements forming the Metaverse are buzzing since 2014. First, it was blockchain, a decentralized distributed digital ledger that comprises records called blocks. Here, the uploaded data is difficult to alter without affecting connected blocks. Thus, it reduces replication and establishes a single data transfer. 6 years later, the concept of NFTs became popular. They are short for Non-Fungible-Tokens.
Summarising from the Ethereum blog,
They are tokens we can use to represent ownership of unique items. These tokens cannot be changed or duplicated. And, now, a year later, Mark Zuckerberg introduced the idea of Metaverse.
You might wonder why we started the blog from Blockchain. It is because that is how we form a meta world. Consider data as atoms and Meta as the world. You get the vibe.