I just read a pretty interesting article about what Web 3.0 is and want to share some thoughts. If you haven't been following this trend closely, now is the time to understand it better.

Here's an intriguing question: if the internet could automatically understand and provide you with the exact information you need, in the format you want, even before you know you need it? It sounds a bit spooky but also quite exciting. That is the vision of Web 3.0 — the next version of the internet we are heading toward.

What exactly is Web 3.0? It describes the next evolution of the World Wide Web, where artificial intelligence will be everywhere, making the internet much smarter. Global data will be organized into a system called the semantic web, allowing machines to understand the true meaning of information just like humans do.

A major change is that users will have more rights to control how their personal data is used than large corporations. Traditional banks will also become less necessary as people can exchange digital currencies directly without intermediaries.

In fact, Web 3.0 is built on three main pillars. First is decentralization — unlike the previous two web generations, Web 3.0 will operate through distributed networks instead of being controlled by a central authority. Second is blockchain, a technology that enables data to be verified across peer-to-peer networks. Third is cryptocurrency, which will replace much of fiat money issued by central banks.

There are also artificial intelligence and machine learning. Websites will be equipped with AI to filter and deliver the data each user needs, rather than content curated by others for you.

The development history is also quite fascinating. Tim Berners-Lee, the British computer scientist, invented Web 1.0 in 1989. He not only programmed the first browser but also created HTML and HTTP. He even envisioned the idea of the semantic web early on, but hardware limitations prevented its deployment.

Web 2.0 emerged at the start of the new millennium with the rise of social networks like Facebook. But Web 2.0 focused data into the hands of big companies like Google, Amazon, and Meta, which make money by collecting and selling customer data.

Web 3.0 could change all that. The global peer-to-peer network of Web 3.0 could become a powerful equalizer, making it difficult for such companies to grow by hoarding data. Users will regain control over their online identities and information.

The applications of Web 3.0 are also very diverse. NFTs will help verify ownership of digital assets. DeFi or decentralized finance will create new financial services without banks. Cryptocurrencies like Bitcoin will be the currency of Web 3.0. Decentralized applications (dApps) built on blockchain will replace traditional apps. Smart contracts will execute business logic automatically and faster than traditional contracts.

However, Web 3.0 also faces challenges. Complexity is a major issue — decentralized networks and smart contracts create significant learning curves. Security is also a concern, as blockchains and crypto exchanges have been hacked. Regulatory concerns are not small either, since the lack of central authorities means ineffective governance. Technical requirements are high; blockchains often consume substantial resources and have large environmental costs.

Another interesting point is that Tim Berners-Lee proposed an alternative technology called Solid, because he believes blockchain is too slow, expensive, and public to serve as an efficient personal data storage.

Regarding timing, most of Web 3.0 is already here as blockchain becomes increasingly real. But a full transition will take time. It took over 10 years to shift from Web 1.0 to Web 2.0, and most experts predict it will take a similar, if not longer, amount of time. Some forecasts suggest at least another decade.

There are some positive signals. Gartner predicts that 25% of enterprises will have decentralized applications by 2024, although they will be embedded within centralized apps. Social media companies, especially Meta, are starting to offer metaverse content created by users. Major brands like Starbucks and NBA have begun offering NFTs. Even giants like Google, Meta, and Microsoft have recently added blockchain features to some of their products.

If you want to prepare for Web 3.0, the best approach is to understand the core technologies first. Then, learn JavaScript and Rust, two important programming languages. Familiarizing yourself with leading blockchain platforms like Ethereum and Hyperledger Fabric is also very helpful. Tools like Alchemy, Chainstack, and OpenZeppelin are assisting developers in building blockchain dApps and NFTs.

Finally, what is Web 3.0 if not a major step forward in how we interact with the internet? It promises a decentralized, smarter web where users have more control. Despite many challenges ahead, this trend is definitely worth watching.