 And how they do that is they take a small biopsy, perhaps the size of a pea or a peppercorn. They take it back to the lab. They put it in something called a growth medium or a growth media. That's essentially a broth with lots of nutrients in that means the cells can grow. You keep it at body temperature and it does indeed grow from something the size of a pea to a beef burger or in Nick's case, chicken nugget sized.