There's a simpleanswer for that.
But on the upside,
we've got a whole dimensionto explore
with entirelydifferent laws of physics.
Why, watch what happenswhen I drop this marble.
Well, that'sthe same,
but other thingsare different.
Come, look at thistwo-dimensional bird's nest.
Ooh, me first!
I'll just steppast Leela here.
You can't step pastin this dimension.
You have to step around.
Observethis two-dimensional egg.
If we were in the thirddimension, looking down,
we'd be able to seean unhatched chick in it,
just as a chick insidea three-dimensional egg
could be seen by an observerin the fourth dimension.
I can't picturethat! You're dumb.
Who said that?
All I see are a bunchof vertical line segments.
We are the Lordsof Flatbush.
Come. The king has declareda feast in your honor.
Wow. How did he even knowwe're here?
'Cause I'm him.Let's eat.
The feastis served!
Choose whatevertwo-dimensionalfoods you like.
Crepes, flatbread,McDonald's hamburgers.
You get the idea.
Hey, how come I can't swallow?
Hmm. I guessit's because
our two-ended digestive systemcan't exist in this dimension.
I supposethat could be an issue.
I knew it. I knewhe'd get us killed somehow.
As you can see, orrather can't see,
but take myword for it,
such a digestivesystem would divide
a 2-D being intoseparate pieces!
So how are we supposedto eat and digest?
Well, since we haveno digestive systems here,
I guess we'd better get back tothe third dimension after all.
Third dimension?I can't picture that!
There's nothing funnyabout science!
If there can be an X-axisand a Y-axis,
why not a Z-axis?
He's opening our mindsto new ideas!