Okay kiddo, do you know what a line is? A line is something that goes straight from one point to another.
Now, imagine we have a special type of line that is made up of a bunch of dots. We call this a curve.
If we look at these dots very closely, we can see that they are not all the same distance apart. Some dots are closer together and some dots are farther apart.
The Hilbert-Samuel Multiplicity is a way for us to measure how many dots are on a curve and how close together they are.
Picture this, let's say we have a piece of string and we wrap it around a curve. We keep wrapping the string until it covers the entire curve.
Now, we take the string off the curve and cut it into little pieces. Each piece is like a dot on the curve. Some pieces will be longer and some will be shorter.
The Hilbert-Samuel Multiplicity is the total number of dots we end up with when we cut up the string.
It's important to know how many dots there are because it can tell us things about the curve. For example, if there are a lot of dots close together, the curve is probably very curved and bumpy.
So the Hilbert-Samuel Multiplicity is like a special way of counting the dots on a curve and telling us how close together they are.