Replying to @farklegriffen another option #tibees #4d #2d #math

You're right. There are some other options for our 2D friend to have a digestive system. One option is a self-gripping intestine like this. The upper half grips on to the lower half, holding the body together. As food moves through, one gate opens at a time and then closes before the next one opens. That way the body can't float apart. On an episode of Futurama, 2D creatures were like amoebas that fully absorbed food before breaking it down and extruding it. You guys had some other interesting ideas, such as diffusing the waste in a similar way to sweating. That might work as long as the sweat glands are isolated from the rest of the digestive system. Maybe a small transporter breaks off to carry material to the edge. If the sweat glands were all connected, our friend would split apart into a thousand pieces. And we don't want that.