‍Cells are crowded and frenzied places. But their interiors still contain more order than their surroundings.Inside a cell, molecular machines convert raw inputs into highly ordered structures; DNA coils into chromosomes and proteins fold into precise three-dimensional shapes. Outside the cell, however, ions drift without gradients, while DNA and proteins exist mostly as scattered building blocks. Only a thin membrane separates the managed chaos inside from the high entropy outside.If a cell’s m...