.bit is like a special type of internet land where websites can live. It's a lot like a neighborhood where houses (websites) are built on different lots (addresses). The difference is that instead of using regular addresses like we do in the real world, websites in .bit world use addresses that end in ".bit". This helps people find them on the internet.
See, when you type in a regular web address like "google.com", your computer has to ask other computers where to find the website. But with .bit addresses, your computer already knows where to find them because they are stored on a special network called the Namecoin system.
Because .bit operates on a different system than regular websites, it can sometimes be harder to use and not all web browsers support it. But for people who value privacy and want to explore the alternate corners of the internet, .bit can be a valuable tool.