What is Celestia? It is a blockchain that uses a modular system, meaning it separates tasks (execution - consensus - data) unlike Ethereum which does everything on a single chain.
The advantage? You can create your own Rollup on top of Celestia's data, without having to start a blockchain from scratch.
It relies on a technique called Data Availability Sampling, which ensures that you can trust the data without downloading everything. In short: smart and fast.
The price is currently less than $10. This is not financial advice, but personally, I think the project is worth following because it truly offers a different idea in the blockchain world.
