ELI5: Explain Like I'm 5

Zero-dimensional space

Hey there little buddy, have you ever drawn a dot on a piece of paper? That dot is a "zero-dimensional space"!

Let me explain it a little more. You know how when you draw a line, it has length? And when you draw a square, it has both length and width? Well, a dot doesn't have any length or width or height. It's just a point in space.

Think of it like a tiny speck that you can't even see unless you look really closely. You can't measure how big it is or how far away it is from other dots because it doesn't have any dimension.

Some scientists use the idea of zero-dimensional space to study really tiny particles that are too small to see with our eyes, like atoms and electrons. They can't point to where these particles are exactly because they don't really exist in a physical place, they just float around in a zero-dimensional space.

So, basically, a zero-dimensional space is just a fancy way of talking about a tiny dot that doesn't have any size or shape to it. Pretty cool, huh?