Whenever you open up social media, you’ll see NFTs popping up everywhere. Some say they’re a bubble that will burst soon, while others say they’re a technology that will change the world. So what exactly is an NFT—what is it that makes people talk about it so loudly and so often?

Let’s start with the basics first. NFT stands for Non-Fungible Token. Translated directly, it means “a token that cannot be replaced.” The meaning is that each NFT is unique and not like Bitcoin or other cryptocurrencies, where every coin has the same value and can be exchanged easily.

Think of it like this: if you borrow 100 baht from a friend, your friend doesn’t care which 100-baht bills you get, because all 100-baht bills are worth the same. But if you borrow an original painted picture from a friend, your friend will ask you to return that exact same picture—not another one. That’s the difference between what an NFT is and ordinary cryptocurrencies.

NFTs are created on blockchain technology, which means all information is stored on a distributed network. No one can modify or delete it. Most NFTs run on Ethereum, although there are other supported networks as well.

So what is the story of NFTs? It starts with four key properties. First, it is a digital asset—not a physical, tangible thing you can hold—but a file (image, video, music) stored on the blockchain. Second, it cannot be divided into smaller units. You can’t split one NFT into 0.5. Third, it is unique and cannot be replaced. Fourth, it runs on a specific blockchain and cannot be moved to use on other blockchains.

Alright then—what is an NFT, and what can it be used for? Today, NFTs have been adopted across many industries. Concert tickets can be NFTs, helping prevent counterfeiting. In the fashion industry, luxury brands can attach NFTs to products to prove authenticity. In the gaming industry, rare in-game items can be NFTs, meaning players can actually buy and trade them with other players. Artists can sell their own digital artwork, and collectors can collect rare items that exist in only one copy in the world.

Some people still wonder what an NFT is, and whether they should invest in it. Its advantage is that it makes proving ownership easier, helps prevent copying, and allows resale conditions to be set (for example, artists can receive a percentage share when the NFT is sold again). But the downside is that the NFT market is still a high-uncertainty speculative market. Intrinsic value is hard to calculate because it depends purely on buying-and-selling demand. There is a risk of losing money.

Creating an NFT isn’t as complicated as it sounds. The first step is preparing your work file (image, video, music). The second step is choosing a blockchain (most commonly Ethereum). The third step is setting up a digital wallet (MetaMask is a popular option). The fourth step is choosing a platform (OpenSea is the largest NFT marketplace). The fifth step is uploading the file. You have to pay a gas fee (Ethereum), which may be around 20–40 dollars. The sixth step is setting the price and listing it for sale.

Before you invest, there is important information you need to know. First, check whether the seller has a verification badge. Second, look at the platform fees (OpenSea takes 2.5%). Third, check the seller’s other works to see pricing trends. Fourth, understand that the NFT you buy grants only ownership rights to the digital file; copyright still belongs to the original artist.

In Thailand, the SEC has set guidelines that NFTs that are artworks can be bought and sold, but they cannot be done on a “Digital Asset Trading Center” that is under the SEC’s supervision.

So what is the story of NFTs, and what will the future be? It’s still a big question. This market is still very new and carries high risk. But one thing is certain: as long as the blockchain keeps running, NFT data will remain forever—unable to be deleted or edited. Even if the original artwork deteriorates over time, the NFT will remain the same.

Finally, if you’re interested in investing in NFTs, start with a small amount. Buy works that you genuinely feel have value. Don’t be afraid of losing money—that’s part of the game. If you’re still confused about what NFTs are, try going to OpenSea once. You’ll see a variety of works—from art to digital collectibles—you might just find something that makes your heart race.