Before you wonder how this concerns you, let me explain:
In commerce, non-fungible items are items that cannot be replaced or substituted with another item of equal value (utility). For instance, the items used in trade-by-barter are all fungible because we are replacing what we have with what we want or need.
Token, on the other hand, is an item serving as a symbol of something else. A son is going to the boarding school, his father gives him a story book, saying “I read this book 30 years ago when I was like you, keep it as a token (symbol or sign) of my love and support for your education. Any time you bring this book to read, remember that I will support your education”.
Typically, NFT could mean an irreplaceable (unique) item serving as a symbol of something important.
How does it work?
The above definition stripped NFT of its digital inclinations, just so you have a non-technical understanding before we delve into it completely.
A Little Digression Please…
NFT is a part of Ethereum blockchain. Ethereum on the other hand, is a cryptocurrency (decentralized open source blockchain with smart functionalities) just like Bitcoin and dogecoin, but its blockchain supports NFT.
A cryptocurrency is a digital payment system that doesn’t rely on banks to approve transactions. It’s a peer-to-peer system that enables anyone anywhere to send and receive payments.
Blockchain is a growing list of records (information such as transaction data, timestamp of transaction and the cryptographic harsh) called blocks, that are linked together using cryptography. Because each new block is linked to the previous block, it is called chain (blockchain). What this means is, every new block contains the same information in the previous block before an additional new information.