ELI5: Explain Like I'm 5

Zariski connectedness theorem

Okay kiddo, have you ever played a game of connect the dots? You start with a bunch of dots on a piece of paper and you have to draw a line that connects all the dots together.

Well, in math we also have something called "connectedness". It's like we have a bunch of points, or dots, on a graph and we're trying to figure out if we can draw a line that connects all the points together without lifting our pencil off the paper.

The Zariski connectedness theorem is a special rule that helps us figure out if we can draw a line that connects all the points on a certain type of graph called an "algebraic variety". It's like a fancy kind of connect-the-dots game, but instead of dots we have equations and instead of lines we have curves.

The theorem basically says that if we can't draw a curve that connects all the points on an algebraic variety, then there must be some special reason why not, like maybe the points are too far apart or there's a big hole in the middle of the graph.

So, the Zariski connectedness theorem helps us understand how all the points on a graph are connected and whether there are any spaces or gaps in between them that we can't fill in. Pretty neat, huh?