ELI5: Explain Like I'm 5

Sierpinski tetrahedron

A Sierpinski tetrahedron is a 3-dimensional geometric shape made up of four red triangles. It looks like a pyramid with four equally sized points, or corners. It is made by taking four triangles and connecting them together. It is sometimes also called the Sierpinski Triangle because it is made up of four triangles. You can start with one large triangle and then cut off one smaller triangle from each corner. Then, you continue to repeat this process, making the triangle's sides slightly smaller each time. Eventually, you will end up with a Sierpinski tetrahedron!
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