 Here's how it works. Rather than raise a whole chicken with beaks, feathers, sentience, we grow the meat directly from muscle cells. We take a small biopsy from a living animal and then extract the cells of interest. Muscle cells in particular love to attach onto surfaces. It helps them grow and elongate into those long muscle fibers that we're so familiar with. So we might provide a scaffolding material for those cells to adhere onto.