Non-fungible tokens (NFTs) represent unique digital assets like art, collectibles, and in-game items on the blockchain. NFTs gained mainstream popularity in 2021, with NFT market sales reaching over $25 billion. NFTs could revolutionize how we own digital assets by providing proof of ownership, and enable new forms of digital scarcity and identity. However, challenges remain around their environmental impact, lack of regulation, and risk of fraud. While NFTs show potential to transform many industries, it remains unclear how significantly they will impact the world.