“Sensitive skin” is the delicate name for a visionary technology: thin flexible large‐area sensor arrays. With sensitive skin, one could endow robots with the information‐gathering tools they need to work in unstructured environments; one could clothe heart patients with shirts that monitor arrhythmia; one could equip food handlers with gloves that detect spoiled meat. The applications of sensitive skin are many, varied, and—unfortunately—out of reach.