Tsallis entropy is a way of measuring disorder or uncertainty in a group of things or information. Let's imagine that you are playing with blocks and you have a bunch of red and blue blocks. You want to know how mixed up they are, and this is where Tsallis entropy comes in.
Tsallis entropy is like a magic trick that helps you measure how mixed up your blocks are. First, you have to count how many red and blue blocks you have. Let's say you have 10 red blocks and 10 blue blocks. Now, you use a special formula to calculate the Tsallis entropy. Don't worry, you don't have to do any math, but it involves squaring and taking a number to a power. This formula will give you a number that tells you how mixed up your blocks are.
Now, let's say that you separate your blocks into two piles: one with 5 red blocks and 15 blue blocks, and another with 15 red blocks and 5 blue blocks. You repeat the process of calculating Tsallis entropy, and you get a different number. This number will tell you that the two piles are more mixed up than before because there are more blocks of different colors in each pile.
So, Tsallis entropy helps you measure how mixed up or disordered something is, like blocks or information. The bigger the Tsallis entropy number, the more mixed up or uncertain things are. And it does this through a special formula that helps you calculate it.