Topology 

of

Videogames

Topology "=" Shapes

Combinatorics "=" Counting

Topology Joke

Henry Segerman

Videogames

Videogames

Is this the sphere?

Surface:

Locally looks 2-dimensional

Text

Manifold: 

Locally looks n-dimensional

 What n-dimensional manifolds are there?

How can we tell different manifolds apart?

Could they have made their videogame world a sphere?  

QUESTION: