One possible answer is eating, since a digestive tract would separate
a 2-dimensional being into 2 pieces.
![](fig6.jpg)
We're getting a good idea of what dimension is. In our universe we
have 3 dimensions in space. According to our definition this should
mean a point can be described by 3 numbers. Indeed if we think of a
point being on a grid
![](fig7.jpg)
then 3 numbers will describe a point uniquely.
Stop for a moment and think, can there be more dimensions beyond 3?
to find out!
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