It's web3 that I only know but since you've mentioned big data, I'm also going to learn and study some ideas that's truly interesting these days. Because we know that there's a phasing for the crypto market and it's being passed onto the new underlying technologies and concepts to grow it as a whole.
you can try to review this content : What Is Different Web3.0 and Current Internet? https://www.coinparative.com/web3-0-news/web-3-0-what-is-it-and-how-will-it-be-different-from-the-current-internet/http://
I think may help you know more about web3.0
I need every single source that I can read so that I'll get to know more about web 3.0. It's true that it's the next big thing and many huge companies are already looking at it.
Before most of them get in, it's much better that we must also know the things that they're trying to figure out with the web 3.0 and it's a plus for big data.