NFT non-fungible tokens explained. ERC 1155 or ERC 721? Why?

Non-Fungible Tokens (non-substitutable Tokens) mean that each one is unique and different from any other. NFTs are sometimes called Collectibles. Traditional ERC20 tokens can be called Fungible tokens because each of them is interchangeable and has the same value. For example, 1 USDT-ERC20 owned by you and 1 USDT-ERC20 owned by others are equivalent, and both have a value of 1 U.S. dollar. In many scenarios, the value of the token is not equivalent. For example, the values of 10 items in a specific game are different from each other.
difference fungible nonfungible
Or, we tokenize tickets for a football game and sell them, because different tickets ave different values for different seats. In order to distinguish different tokens, a different token ID is set for each token to distinguish it. The Doge Fighter below is a ERC 721 token minted on Binance Smart Chain.
doge fighter nft for sale on twinci BSC
All NFTs are not created equal, which is clear when comparing the ERC-1155 and ERC-721 token standards. A token standard is a set of rules that defines the functions that each token is capable of. ERC-1155 allows you to create Fungible, Non-Fungible, and Semi-Fungible in one single token standard. Both Fungible and Non-Fungible tokens can be created using the same standard. An example use case: games. You earn points and buy items using these points in a game.
At the same time, you can exchange items too. The “items” can be represented by Non-Fungible ERC-1155 and “points” can be represented as Fungible ERC-1155. ERC-1155 standard specifications: https://eips.ethereum.org/EIPS/eip-1155 Simply put: You create a unique single item with ERC-21 and can use ERC 1155 to create and sell multiple (for example 12 in a Limited Edition) collectibles. SEE EXAMPLE FOR 10 pieces of White Punk Limited Edition

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